Adding Tens and Near Tens Made Easy

What is the commutative property of addition?

• The sum remains the same regardless of the order of addends.

• The sum changes when the order of addends is changed.

• The sum is always less than the addends.

• The sum is always greater than the addends.

Which of the following pairs does NOT add up to 10?

• 1 and 9

• 3 and 7

• 5 and 5

• 4 and 5

How many ones are there in 1 ten and 5 ones?

• 5

• 10

• 15

• 20

If you have 9 blocks and add 2 more, what is the total?

• 10

• 12

• 9

• 11

How can you decompose 5 to add it to 9 using near tens?

• 2 and 3

• 3 and 2

• 1 and 4

• 5 and 0