Ray's New Primary Arithmetic · Lesson LXVII · Unit 7: Signs, bigger numbers and mixed problems
67. Story problems with bigger numbers: adding
Goal: Your child solves addition stories with numbers up to about 50.
You'll need
- A slate, small whiteboard or paper and pencil
What's in the book
Fifteen problems such as "I had 15 cents, and Charles gave me 5 more: how many cents had I then?" and "Edwin has 8 oranges more than Anna, and Anna has 19: how many has Edwin?"
The lesson, step by step
"More than" stories
Edwin has 8 more than Anna. Act it out: line up Anna's 19, then make Edwin's line 8 longer.
Work through the page
Your child answers each problem in a full sentence.
Afterwards
Make up two stories with family ages or prices.