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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