Headline Story
Understanding Addition and Subtraction Algorithms, #8
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Introduction
Share the Headline Story with the class. Encourage them to think of creative solutions.
Headline Story
Complete the number sentence below and make a story to go with it.
50 – 18 = ___
Possible student responses
- 50 – 18 = 32.
- I had 50¢. I spent 18¢ to buy a pencil, so I have 32¢ left.
- Joe had 50 balloons. Then 18 balloons drifted away, so now he only has 32 balloons.
- Laura has 50 marbles. She has 18 marbles more than Kelly, so how many marbles does Kelly have?
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