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7 questions
Estimate by rounding to the nearest ten
36-19=
30
20
40
Estimate by rounding to the nearest ten-
563-488=
70
50
60
75
Estimate by rounding to the nearest HUNDRED
915
-683
300
200
400
Estimate by rounding to the nearest HUNDRED
961
-293
700
600
500
Estimate by using FRONT END Estimation:
851
-565
800
200
300
Select the equation that can be used to check the answer to each problem:
724-129=
? - 129=724
129-? =724
724+ ?=129
129 + ? = 724
Select the equation that can be used to solve the answer to each problem:
931
-317=?
?-317=931
931+ ?= 317
317+?= 931
317-?+931
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