Rounding
Estimate the sum by rounding each number to the nearest ten thousand.
652,198 + 49,753 = _________
650,000 + 50,000 = 700,000
Add 32,834 + 17,384 = ___________
50,218
Find
651,784 - 482,638
169,146
Find the difference. Do the inverse operation to check your work.
40,700 - 23,984 = ________
What is 16,716?
16,716 + 23,984 = 40,700
Which property is shown in the problem 126 + 0 = 126
Associative Commutative Identity
What is the Identity Property?
Estimate the sum by rounding to the nearest thousands place.
17,586 - 9,483 = _______
What is 18,000- 9,000 = 9,000
Find the sum:
215 + 8,823=
What is 9,038?
Find the difference.
41,542 - 32,411 = _______
What is 9,131?
Find the difference. Do the inverse operation to check your work.
70,000 - 25,228 = ________
What is 44,772?
44,772 + 25,228 = 70,000
Which addition property is shown: 21 + 34 = 34 + 21
Associative Commutative Identity
What is the Commutative Property?
Estimate the sum by rounding to the nearest thousands place.
44,676 - 16,521 = _______
What is
45,000 - 17,000 = 28,000
Find the sum:
2,417 + 3,573 =
What is 5,990?
Find the difference.
735,184 - 255,863 = __________
What is 479,321?
Find the difference. Do the inverse to check your work.
8,052 - 1,205 = __________
What is 6,847?
6,847 + 1,205 = 8,052
Which addition property is shown:
(1 + 3) + 7 = 1 + (3 + 7)