Ray's New Practical Arithmetic · Art. 59 · Unit 6: United States Money

30. Dividing money

Goal: Your child finds how many times one sum of money goes into another, and divides a sum into equal parts.

⏱ About 35 minutes · 6 steps

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You'll need

  • The book
  • A slate, small whiteboard or scrap paper
  • A notebook and pencil

What's in the book

Two cases of division of United States money: how many times one sum is contained in another, and sharing a sum into equal parts, each with a rule and problems.

The lesson, step by step

  1. Warm-up

    Mental: How many 25-cent toys for $1? How many 10-cent stamps for $2? Share $6 among 4.

  2. Case I

    Read:

    To find how many times one sum of money is contained in another.

    Reduce both sums of money to the same denomination.

    Work: How much cloth, at 7 cents a yard, will $1.75 buy? $1.75 is 175 cents; 175 ÷ 7 = 25 yards.

  3. Case II

    Read:

    To divide a sum of money into a given number of equal parts.

    Put the decimal point in the same place in the quotient as it is in the dividend.

    Work: A man worked 3 days for $3.75, what were his daily wages? $3.75 ÷ 3 = $1.25.

  4. Guided practice

    Do these together:

    2. How much rice, at 9 cents a pound, can be bought for 72 cents?

    3. Divide 65 dollars equally among 8 persons.

    (Answers 8 lb. and $8.125.)

  5. Independent practice

    Your child does the remaining problems in both cases.

  6. Check and wrap-up

    Answers are printed. Mental: $10 ÷ 4? 90 cents ÷ 15 cents?

Tip

Ask before each problem: Is the answer a number of things (Case I) or an amount of money (Case II)? That decides where the decimal point goes.

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