NBT: Add and Subtract Within 100 Using Strategies

634-256

• 422

• 890

• 378

• 368

700-289

• 431

• 516

• 511

• 411

Janice needs 225 blocks to build a model of a house.  She has 182 blocks.  How many more blocks does Janice need? 

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On Saturday, 155 pumpkins were sold at the town fair.  On Sunday, 138 pumpkins were sold.  How many pumpkins were sold on both days? 

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Hunter had 15 marbles. He gave 6 away to his friends. He found 3 more. How many marbles does Hunter have now?

• 12

• 24

• 18

• 15

Suzy planted 235 seeds, but 175 seeds did not grow.  How many seeds did grow?

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Bob' party shop has 250 balloons.  He gave 135 balloons to children for the school play. How many balloons does he have now? 

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Dion has 175 marbles.  He put 155 marbles into a box, and gave the rest to his sister.  How many marbles did Dion give to his sister? 

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• Subtract 

On Thursday, 437 workers travel by train to work.  On Friday, 353 workers travel by train to work.  How many workers traveled by train on these two days? 

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• Subtract

Lauren has 290 postcards and Jeff has 563 postcards.  How many more postcards does Jeff have than Lauren?

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• Subtract