My Math - Chapter 2 Review

9,834 + 278 =

Match the following

• identity property

• 5 + 0 = 5

• sum

• result of addition

• commutative property

• (3 + 8) + 7 =

  (3 + 7) + 8

• associative property

• numbers being added

• addend

• 7 + 9 = 9 + 7

Match the following

• parentheses

• states that the order in which numbers are added does not change the sum

• regroup

• a number close to the exact number

• commutative property

• symbols that show grouping

• estimate

• to rename a number using place value

• identity property

• states the sum of any number and zero is the number

What number is 100 less than 2,380

2,345 + ​ (a)   = 3,345

• 1,000
• 10
• 100
• 1
• 0

4,397 + ​ (a)   = 4,407

• 1,000
• 10
• 100
• 1
• 0

379 + 245 =

2,586 + 648 =