Addition
589 + 672
1,261
598 - 167
431
Round each number in the problem to the nearest hundred and solve.
189 + 111
300
Round each number to the nearest ten and solve.
142 - 68
70
75 + 0 = 75
identity property of zero
600 + 259
859
987 - 693
294
Round each number to the nearest thousand and solve.
4,628 + 3,216
8,000
Round each number to the nearest hundred and solve.
865 - 423
500
Which property of addition makes this problem true?
(450 + 75) + 50 = (50 + 75) + 450
associative property of addition
1,629 + 3,854
5,843
1,929 - 684
1,245
Round each number to the nearest thousand and solve.
10,198 + 21,567
32,000
Round each number to the nearest thousand and solve.
9,145 - 7,682
1,000
What property of addition makes this problem true?
780 + 90 = 90 + 780
commutative property of addition
4,000 + 9,638
13,638
32,589 - 27,854
4,735
Round each number to the nearest ten thousand and solve.
25,678 + 12,689
39,000
Round each number to the nearest ten thousand and solve.
86,245 - 54,672
40,000
Make this problem true.
4500 + (750 + 50) = (750 + 4500) + ____
50
515,895 + 100,639
616,534
659,258 - 125,674
533,584
Round each number to the nearest hundred thousand and solve.
516,245 + 112,410
600,000
Round each number to the nearest hundred thousand and solve.
925,450 - 678,435
200,000
Make this problem true.
1,500 + 500 = ____ + 1500
500