Headline Story
Understanding Addition and Subtraction Algorithms, #1
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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 and make a story to match.
18 + _____ = 100
Possible student responses
- 18 + 82 = 100.
- I have 18¢. How much more will I need to have $1.00?; I jumped from 18 to 100 on the number line. How far did I jump?
- Jack had 18 toy cars in his collection. He got many more toy cars this year. Now he has 100 toy cars.
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