Ray's New Intellectual Arithmetic: teaching guides on Teddy Rook Bookhttps://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/Recent content in Ray's New Intellectual Arithmetic: teaching guides on Teddy Rook BookTeddy Rook Bookhttps://teddyrookbook.com/img/share.jpghttps://teddyrookbook.com/img/share.jpgHugoenSat, 10 Oct 2026 00:00:00 +0000Lesson 1: Adding small numbers, and saying whyhttps://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-1/Sat, 10 Oct 2026 00:00:00 +0000https://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-1/Lesson 10: Chains with + and −https://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-10/Sat, 10 Oct 2026 00:00:00 +0000https://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-10/Lesson 11: Mixed adding and subtracting storieshttps://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-11/Sat, 10 Oct 2026 00:00:00 +0000https://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-11/Lesson 12: Multiplying: the cost of severalhttps://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-12/Sat, 10 Oct 2026 00:00:00 +0000https://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-12/Lesson 13: The multiplication table to 12 × 12https://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-13/Sat, 10 Oct 2026 00:00:00 +0000https://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-13/Lesson 14: Multiplying in storieshttps://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-14/Sat, 10 Oct 2026 00:00:00 +0000https://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-14/Lesson 15: Review: adding, subtracting and multiplyinghttps://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-15/Sat, 10 Oct 2026 00:00:00 +0000https://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-15/Lesson 16: Dividing: how many can you buy?https://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-16/Sat, 10 Oct 2026 00:00:00 +0000https://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-16/Lesson 17: The division tablehttps://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-17/Sat, 10 Oct 2026 00:00:00 +0000https://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-17/Lesson 18: Sharing, rates and the cost of onehttps://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-18/Sat, 10 Oct 2026 00:00:00 +0000https://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-18/Lesson 19: From one to many, and many to onehttps://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-19/Sat, 10 Oct 2026 00:00:00 +0000https://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-19/Lesson 2: Adding drills and counting onhttps://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-2/Sat, 10 Oct 2026 00:00:00 +0000https://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-2/Lesson 20: Halves, thirds and other parts of a wholehttps://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-20/Sat, 10 Oct 2026 00:00:00 +0000https://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-20/Lesson 21: Writing fractionshttps://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-21/Sat, 10 Oct 2026 00:00:00 +0000https://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-21/Lesson 22: A fraction of a numberhttps://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-22/Sat, 10 Oct 2026 00:00:00 +0000https://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-22/Lesson 23: What part of one number is another?https://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-23/Sat, 10 Oct 2026 00:00:00 +0000https://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-23/Lesson 24: Finding the whole from a parthttps://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-24/Sat, 10 Oct 2026 00:00:00 +0000https://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-24/Lesson 25: Dividing with a fraction in the answerhttps://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-25/Sat, 10 Oct 2026 00:00:00 +0000https://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-25/Lesson 26: Mixed numbers into improper fractionshttps://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-26/Sat, 10 Oct 2026 00:00:00 +0000https://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-26/Lesson 27: Lowest termshttps://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-27/Sat, 10 Oct 2026 00:00:00 +0000https://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-27/Lesson 28: Changing a fraction to a new denominatorhttps://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-28/Sat, 10 Oct 2026 00:00:00 +0000https://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-28/Lesson 29: Common denominatorshttps://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-29/Sat, 10 Oct 2026 00:00:00 +0000https://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-29/Lesson 3: The addition tablehttps://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-3/Sat, 10 Oct 2026 00:00:00 +0000https://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-3/Lesson 30: Adding fractionshttps://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-30/Sat, 10 Oct 2026 00:00:00 +0000https://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-30/Lesson 31: Subtracting fractionshttps://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-31/Sat, 10 Oct 2026 00:00:00 +0000https://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-31/Lesson 32: Adding and subtracting together: what is left?https://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-32/Sat, 10 Oct 2026 00:00:00 +0000https://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-32/Lesson 33: Multiplying a fraction by a whole numberhttps://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-33/Sat, 10 Oct 2026 00:00:00 +0000https://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-33/Lesson 34: Rates with fractional answershttps://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-34/Sat, 10 Oct 2026 00:00:00 +0000https://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-34/Lesson 35: Multiplying mixed numbershttps://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-35/Sat, 10 Oct 2026 00:00:00 +0000https://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-35/Lesson 36: Paying with something else (barter)https://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-36/Sat, 10 Oct 2026 00:00:00 +0000https://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-36/Lesson 37: A fraction of a fractionhttps://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-37/Sat, 10 Oct 2026 00:00:00 +0000https://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-37/Lesson 38: Prices and amounts with fractionshttps://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-38/Sat, 10 Oct 2026 00:00:00 +0000https://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-38/Lesson 39: Finding the whole, with fractionshttps://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-39/Sat, 10 Oct 2026 00:00:00 +0000https://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-39/Lesson 4: Adding to two-digit numbershttps://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-4/Sat, 10 Oct 2026 00:00:00 +0000https://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-4/Lesson 40: A fraction of a number is how many times another?https://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-40/Sat, 10 Oct 2026 00:00:00 +0000https://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-40/Lesson 41: Dividing by a fractionhttps://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-41/Sat, 10 Oct 2026 00:00:00 +0000https://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-41/Lesson 42: Dividing fractions by whole numbershttps://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-42/Sat, 10 Oct 2026 00:00:00 +0000https://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-42/Lesson 43: Dividing by fractions in storieshttps://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-43/Sat, 10 Oct 2026 00:00:00 +0000https://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-43/Lesson 44: Shortcuts: parts of a dozen and of a dollarhttps://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-44/Sat, 10 Oct 2026 00:00:00 +0000https://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-44/Lesson 45: Review: mixed problemshttps://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-45/Sat, 10 Oct 2026 00:00:00 +0000https://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-45/Lesson 46: Review: the big mixed sethttps://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-46/Sat, 10 Oct 2026 00:00:00 +0000https://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-46/Lesson 47: United States moneyhttps://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-47/Sat, 10 Oct 2026 00:00:00 +0000https://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-47/Lesson 48: Dry measurehttps://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-48/Sat, 10 Oct 2026 00:00:00 +0000https://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-48/Lesson 49: Liquid measurehttps://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-49/Sat, 10 Oct 2026 00:00:00 +0000https://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-49/Lesson 5: Adding several numbers, and counting by any numberhttps://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-5/Sat, 10 Oct 2026 00:00:00 +0000https://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-5/Lesson 50: Avoirdupois weight (pounds and ounces)https://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-50/Sat, 10 Oct 2026 00:00:00 +0000https://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-50/Lesson 51: Long measurehttps://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-51/Sat, 10 Oct 2026 00:00:00 +0000https://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-51/Lesson 52: Timehttps://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-52/Sat, 10 Oct 2026 00:00:00 +0000https://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-52/Lesson 53: Problems with mixed unitshttps://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-53/Sat, 10 Oct 2026 00:00:00 +0000https://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-53/Lesson 54: Business problems with whole numbershttps://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-54/Sat, 10 Oct 2026 00:00:00 +0000https://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-54/Lesson 55: Fractions of a price, and what is lefthttps://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-55/Sat, 10 Oct 2026 00:00:00 +0000https://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-55/Lesson 56: Number puzzles: sums, differences and ageshttps://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-56/Sat, 10 Oct 2026 00:00:00 +0000https://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-56/Lesson 57: Dividing in fractional parts, and clock puzzleshttps://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-57/Sat, 10 Oct 2026 00:00:00 +0000https://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-57/Lesson 58: A number and a part of itselfhttps://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-58/Sat, 10 Oct 2026 00:00:00 +0000https://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-58/Lesson 59: Working togetherhttps://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-59/Sat, 10 Oct 2026 00:00:00 +0000https://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-59/Lesson 6: Subtractionhttps://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-6/Sat, 10 Oct 2026 00:00:00 +0000https://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-6/Lesson 60: Ratiohttps://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-60/Sat, 10 Oct 2026 00:00:00 +0000https://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-60/Lesson 61: Ratio with three or more partshttps://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-61/Sat, 10 Oct 2026 00:00:00 +0000https://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-61/Lesson 62: Proportion by reasoninghttps://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-62/Sat, 10 Oct 2026 00:00:00 +0000https://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-62/Lesson 63: Partnershiphttps://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-63/Sat, 10 Oct 2026 00:00:00 +0000https://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-63/Lesson 64: Per cent: what it meanshttps://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-64/Sat, 10 Oct 2026 00:00:00 +0000https://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-64/Lesson 65: Finding a per cent of a numberhttps://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-65/Sat, 10 Oct 2026 00:00:00 +0000https://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-65/Lesson 66: Fractions as per centshttps://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-66/Sat, 10 Oct 2026 00:00:00 +0000https://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-66/Lesson 67: What per cent? Gain and losshttps://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-67/Sat, 10 Oct 2026 00:00:00 +0000https://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-67/Lesson 68: Finding the cost from the selling pricehttps://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-68/Sat, 10 Oct 2026 00:00:00 +0000https://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-68/Lesson 69: Discounts: “per cent off”https://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-69/Sat, 10 Oct 2026 00:00:00 +0000https://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-69/Lesson 7: The subtraction tablehttps://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-7/Sat, 10 Oct 2026 00:00:00 +0000https://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-7/Lesson 70: Commissionhttps://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-70/Sat, 10 Oct 2026 00:00:00 +0000https://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-70/Lesson 71: Insurancehttps://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-71/Sat, 10 Oct 2026 00:00:00 +0000https://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-71/Lesson 72: Simple interest for whole yearshttps://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-72/Sat, 10 Oct 2026 00:00:00 +0000https://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-72/Lesson 73: Interest for months and dayshttps://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-73/Sat, 10 Oct 2026 00:00:00 +0000https://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-73/Lesson 74: Finding the principal from the interesthttps://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-74/Sat, 10 Oct 2026 00:00:00 +0000https://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-74/Lesson 75: Finding the principal from the amounthttps://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-75/Sat, 10 Oct 2026 00:00:00 +0000https://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-75/Lesson 76: Finding the timehttps://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-76/Sat, 10 Oct 2026 00:00:00 +0000https://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-76/Lesson 77: Finding the ratehttps://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-77/Sat, 10 Oct 2026 00:00:00 +0000https://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-77/Lesson 78: Present worth and discounthttps://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-78/Sat, 10 Oct 2026 00:00:00 +0000https://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-78/Lesson 79: Interest puzzleshttps://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-79/Sat, 10 Oct 2026 00:00:00 +0000https://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-79/Lesson 8: Subtraction stories: how much more, how much gainedhttps://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-8/Sat, 10 Oct 2026 00:00:00 +0000https://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-8/Lesson 80: Miscellaneous problemshttps://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-80/Sat, 10 Oct 2026 00:00:00 +0000https://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-80/Lesson 9: Review: adding and subtracting togetherhttps://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-9/Sat, 10 Oct 2026 00:00:00 +0000https://teddyrookbook.com/homeschool/rays-arithmetic/intellectual/lesson-9/