Rounding Decimal Numbers
Rounding Whole Numbers
Estimate the SUM
Estimate the Difference
Review
100
Round 2.33 to the nearest tenth?
2.3
100
Round 423 to the nearest tens place.
420
100

25.4 + 19.6

45

100

20.4 - 15.5

4

100
3,205,814 What number is in the hundred-thousands place?
2
200
Round 200.2378 to the nearest thousandth.
200.238
200
Round 2,389 to the nearest hundreds place.
2,400
200

$43.99 + 4.50

49

200

100.58 - 80.56

20

200
34.0981 What number is in the thousandths place?
8
300
Round 234.93 to the nearest tenth.
234.90
300
Round $11.56 to the nearest whole dollar.
$12
300

$2.39 + 0.75

3

300

1,243.03 - 456.51

786

300
7.025 ________ 7.0206 <, >, or =
>
400
Round 3.459 to the nearest hundredth.
3.46
400
Round 12,439 to the nearest ten-thousands place.
10,000
400

456.03 + 23.98

480

400

116.7 - 99.9

17

400
Order the numbers from least to greatest. 5.285 ; 5.825 ; 5.5 ; 5.28 ; 5
5 5.28 5.285 5.5 5.825
500
Round 34.5697 to the nearest thousandth.
34.570
500
Round 2,372,000,000 to the nearest hundred-millions place.
2,400,000,000
500

$24.90 + $10.01 + $4.99

40

500

13.6 - 8.9 - 0.9

4

500

Name the value of the digit in the hundredths place. Round this number to the nearest tens place. 48.12

Value = 0.02 Rounded number= 50.00

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