Understanding Decimal Review

Comparing Decimals

100

0.45 ___ 0.405

0.45 > 0.405

200

0.8 ___ 0.80

0.8 = 0.80

300

4.199 ___ 4.29

4.199 < 4.29

400

What is the largest mammal in the world?

Blue whale

500

Write the decimals in order from least to greatest. 

0.4  0.09  0.13

0.09, 0.13, 0.4

Expanded Form

100

Write the number in expanded from as a decimal.

(9 x 10) + (8 x 0.01) + (2 x 0.001)

90.082

200

Write the number in expanded from as a decimal.

(7 x 0.1) + (2 x 0.01) + (1 x 0.001)

0.721

300

Write the number in expanded from as a decimal.

(8 x 10) + (5 x 1) + (1 x 1/10) + (2 x 1/100)

85.12

400

Which continent is also a country?

Australia

500

Write the number in expanded from as a decimal.

(4 x 1) + (5 x 0.1) + (1 x 0.001)

4.501

Writing decimals in Word form

100

4.7

four and seven tenths

200

What planet has the most moons in our solar system?

Saturn

300

7.125

Seven and one hundred twenty-five thousandths

400

9.05

nine and five hundredths

500

10.009

ten and nine thousandths

Writing decimals in standard form

100

One and thirty-two hundredths

1.32

200

Four and one tenth

4.1

300

Eight and three hundred five thousandths

8.305

400

fifty-six thousandths

0.056

500

In the book Harry Potter, what sport is played on broomsticks?

Quidditch

Rounding Decimals

100

In Greek mythology, who is the king of the gods?

Zeus

200

3.499 → nearest tenth

3.5

300

What is the fastest land animal?

Cheetah

400

0.271 → nearest tenth

0.3

500

4.736 → nearest tenth

4.7