Place-Value Detectives
Form-Change Champions
Rounding Rockets
Regrouping Challenge
Real-World Decimal Missions
100

In 6.06, how many times greater is the value of the 6 in the ones place than the value of the 6 in the hundredths place?

100 times greater

100

Write 12.406 in word form.

Twelve and four hundred six thousandths

100

Round 7.846 to the nearest hundredth.

7.85

100

Solve: 48.76 + 27.89

76.65

100

An aquarium has 12.75 liters of water in one tank and 8.6 liters in another tank. How much water is there altogether?

21.35 liters

200

How many times greater is the value of the 4 in 4,000 than the value of the 4 in 400?

10 times greater

200

Write 8 + 0.3 + 0.006 in standard form.

8.306

200

List a number that would round to 3.6 when rounded to the nearest tenth?

3.55 through 3.64

200

Solve: 306.58 + 197.47

504.05

200

A hiking trail is 14.8 miles long. Maya has walked 6.37 miles. How many miles does she have left?

8.43 miles

300

What number is 10 times greater than 0.37?

3.7

300

Write 50 + 7/10 + 9/1,000 in standard form.

50.709

300

Round 9.249 to the nearest tenth.

9.2

300

Solve: 7.895 + 2.678

10.573

300

A student uses 5.25 meters of ribbon for one project and 3.78 meters for another project. How much ribbon did the student use altogether?

9.03 meters

400

What number is 1/100 the value of 58?

0.58

400

Write 3.045 in expanded form.

3 + 0.04 + 0.005

400

Which digit could replace the blank so that 5.3_8 rounds to 5.4 when rounded to the nearest tenth?

5,6,7,8,9

400

Solve: 82.4 − 37.86

44.54

400

A science sample has a mass of 18.6 grams. After part of the sample is removed, its mass is reduced by 7.85 grams. What is the new mass?

10.75 grams

500

In 5.905, which 5 has the greatest value, and how many times greater is it than the other 5?

The 5 in the ones place; it is 1,000 times greater

500

Write six and fifty-two thousandths in standard and expanded form.

Standard: 6.052; Expanded: 6 + 0.05 + 0.002

500

Estimate 18.7 + 4.2 by rounding each number to the nearest whole number.

19 + 4 = 23

500

Solve: 111.00 − 47.68

63.32

500

A gardener uses 6.4 kilograms of soil in one garden bed and 2.875 kilograms in another. How much soil does the gardener use altogether?

9.275 kilograms

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