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2.04 Addition strategies

Interactive practice questions

Select all of the number pairs that add to $10$10.

$3$3 and $7$7

A

$5$5 and $5$5

B

$9$9 and $1$1

C

$2$2 and $8$8

D
Easy
< 1min

How many more do we need to add to $1$1 to get to $10$10?

Easy
< 1min

How many more do we need to add to $9$9 to get to $10$10?

Easy
< 1min

How many more do we need to add to $85$85 to get to $90$90?

Easy
< 1min
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