Adding and Subtracting with base-10 blocks

Which place value blocks show the difference of 45 - 13 ?

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Which place value blocks show the difference of 14 - 8 ?

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Which place value blocks show the sum of 22 and 31 ?

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What place value blocks show the sum of 18 and 12 ?

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Which model shows a solution for

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Which model shows a solution for

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What is the sum of

What is the difference of

Tia has 47 pennies. She gives Raya 15. How many pennies does Tia have left?

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Judah has a basket tennis of balls. He gave 8 to Lynn. Now Judah had 14 tennis balls.

How many tennis balls did Judah start with?

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