Use rounding to estimate the sum of the following numbers. 56+43
A
100
B
90
C
80
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Slide 1: Quiz
Math
This lesson contains 6 slides, with interactive quizzes.
Items in this lesson
Use rounding to estimate the sum of the following numbers. 56+43
A
100
B
90
C
80
Slide 1 - Quiz
Use rounding to estimate the sum of the following numbers. 287 + 149
A
400
B
500
C
600
D
300
Slide 2 - Quiz
Use rounding to estimate the difference of the following numbers. 629 - 444
A
400
B
300
C
200
D
100
Slide 3 - Quiz
Use rounding to estimate the difference of the following numbers. 730 - 535
A
100
B
200
C
300
D
400
Slide 4 - Quiz
First, add the following numbers. Then round the numbers to the nearest hundred and find the estimated sum. The estimated sum is not a rounded number of the original answer. (Copy carefully on scratch paper to work the problem.) 682 rounds to? 446 rounds to? 682+446= 682+446 rounds to?
Slide 5 - Open question
Subtract the following numbers. Then round the numbers to the nearest hundred and find the estimated difference. (Copy carefully on scratch paper to work the problem.) 518 rounds to? 333 rounds to? 518-333= 518-333 rounds to?