Tens
Round 52 to the nearest ten
50
Round 542 to the nearest hundred
500
Bob had $525. He bought a pair of jeans for $85 and a shirt for $37. How much money did Bob have left? Estimate by rounding each item's cost to the nearest ten.
$395
What is the difference of
52-37
15
Round 332 to the nearest ten
330
Round 357 to the nearest hundred
400
What is the name of the property shown below:
432 + 234 = 234 + 432
commutative property of addition
What is the difference of
123-37
86
Round 599 to the nearest ten
600
Round 579 to the nearest hundred
600
(32 + 45) + 23 = (23 + 45) +32
associative property of addition
What is the sum of
562 + 333
895
Round 79 to the nearest ten
80
Round 650 to the nearest ten
650
Carla has 32 paper clips. Dan has 25 more paper clips than Carla. How many do they have in all?
89 paper clips
Subtract
325-176
149
Estimate the sum rounding to the nearest ten
434 + 521
950
Estimate the difference rounding to the nearest hundred
672 - 394
300
Dan has 422 pieces of candy. Rhonda has 35 less pieces of candy. How many pieces of candy do they have in all?
809 pieces of candy
What an equation to show how to check that
426-322 = 104
104 + 322 = 426