Addition
56 + 64 = ?
120
Round 28 to the nearest 10.
30
Round 94 to the nearest 100.
100
48 - 19 = ?
29
What is a sum?
The answer to an addition problem.
145 + 238 = ?
383
Round 65 to the nearest 10.
70
Round 298 to the nearest 100.
300
172 - 148 = ?
24
What are addends?
The numbers that you add in an addition problem.
520 + 297 = ?
817
Round 173 to the nearest 10.
170
Round 824 to the nearest 100.
800
450 - 365 = ?
85
Which property does this math equation show? 34 + 56 = 56 + 34
Commutative Property of Addition
376 + 274 = ?
650
Round 765 to the nearest 10.
770
Round 749 to the nearest 100.
700
712 - 534 = ?
178
Which property does this math equation show? 4 + (9 + 3) = (4 + 9) = 3
Associative Property of Addition
876 + 438 = ?
1,314
Round 503 to the nearest 10.
500
Round 651 to the nearest 100.
700
637 - 459 = ?
178
What do you do when you take a multiple of 10 or 100 that is nearest the number?
Round