Intro to Decimal Review

Powers of 10

100

34 x 10⁴

340,000

200

2.394 x 10²

239.4

300

8134.9 / 10²

81.349

400

19.27 / 10⁴

0.001927

500

0.384 x 10⁴

3,840

Expanded Form

100

Write in expanded form:  0.63

(6 x 0.1) + (3 x 0.01)

200

Expand: 0.71

(7 x 0.1) + (1 x 0.01)

300

Expand: 0.89

(8 x 0.1) + (9 x 0.01)

400

What is 

(5 x 0.1) + (6 x 0.01) 

in standard form?

0.56

500

What is 

(1 x 0.1) + (3 x 0.01) 

in standard form?

0.13

Word Form

100

Write 0.57 in word form.

fifty-seven hundredths

200

Write 1.48 in word form.

One and forty-eight hundredths

300

Write the decimal: five and thirty-two hundredths

5.32

400

Write the decimal in standard form:  Twenty-three and nine tenths

23.9

500

Write the decimal in standard form:  Four hundred and forty-four hundredths 

400.44

Comparing

100

Compare:

34.20 _____ 34.03

34.20 > 34.03

200

Compare:

0.029 _____0.038

0.029 < 0.038

300

Compare: 

0.345 _____ 0.038

0.345 > 0.038

400

Compare:

0.01 ____ 0.10

0.01 < 0.10

500

Compare:  

0.050 ____ 0.50

0.050 < 0.50

Rounding

100

Round 12.374 to the nearest tenth.

12.4

200

Round 12.374 to the nearest hundredth.

12.37

300

Round 723.1283 to the nearest tenth.

723.1

400

Round 723.1283 to the nearest hundredth.

723.13

500

Round 723.1283 to the nearest thousandth.

723.128