Mental Math Estimation Game : Money, Decimals, and Whole Numbers

Rounding Decimals

100

Round to the nearest dollar

$58.42

$58.00

200

Tim bought a smart phone for $55.56. When a friend asked him about the price, he tells him he rounded to the nearest dollar. What is the rounded amount?

$56.00

300

Round to the nearest ten dollars.

$61.71

$61.00

400

Round to the nearest 10 dollars

$73.45

$73.00

500

Wesley bought a laptop for $567.93. Round the cost of the laptop to the nearest 100 dollars.

$600.00

Decimal Place value

100

Round the number to the nearest whole number.

3.48

3

200

Round the number to the nearest hundredth.

14.526

14.53

300

There are 2.54 cm in an inch.  Round the number to the nearest whole number.

3

400

Round to the nearest tenth.

5.658

5.7

500

What number is in the thousandths place.

.0467

6

Round Up or Stay the Same?

100

10,457 - nearest whole number

stay the same - 10,000

200

47.87 - to the nearest tenth

Up - 47.9

300

100.741 nearest hundredth

 stay the same - 100.74

400

2,732 - nearest thousand

Up - 3,000

500

310.21 - nearest whole number

stays the same - 310.00