Rounding Decimal Numbers
Rounding Whole Numbers
Estimate the SUM
Estimate the Difference
Review (DOUBLE POINTS)
100
Round 2.33 to the nearest tenth?
2.3
100
Round 423 to the nearest tens place.
420
100
25.4 + 19.6
Answers may vary. 50 or 45
100
20.4 - 15.5
Answers may vary. Possible answers include: 0 and 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
Answers may vary. Possible answers include: $49.00, $45.00, $48.50
200
100.48 - 80.56
Answers may vary. Possible answers include: 20 and 19
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
Answers may vary. Possible answers include: $3.00, $3.20, $3.40
300
1,243 - 456
Answers may vary. Possible answers include: 700, 780, 540, and 500
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 + 23
Answers may vary. Possible answers include: 520 and 480
400
9,234 - 3,456
Answers may vary. Possible answers include: 6,000 & 5,700 & 5,770
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
Answers may vary. Possible answers include: $40.00, $35.00, $39.90
500
13.6 - 8.9 - 0.9
Answers may vary. Possible answers include: 4 and 0
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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