Decimal Review

Comparing Decimals

100

37.508    3.758

< , > , =

>

200

83.04    83.040

< , > , =

=

300

33.3    33.081

< , > , =

>

400

1.011      1.101

< , > , =

<

500

6    6.0000

< , > , =

=

Standard Form

100

(3 × 100) + (6 × 10) + (6 × 1/10) + (4 x 1/100)

360.64

200

(3 x 10) + (4 x 1) + (5 x 1/10) + (5 x 1/100) + (6 X 1/1000)

34.556

300

(6 × 1,000) + (1 × 100) + (2 × 10) + (9 × 1/10) + (4 × 1/100)

6120.94

400

(4 x 100) + (5 x 1) + (1 x 1/100) 

405.01

500

(4 x 1/100) + (3 x 100) + (2 x 1/10) + (6 x 1) + (4 x 10)

346.24

Word Form

100

.23

twenty-three hundredths

200

.365

three hundred sixty five thousandths

300

1.20

one and twenty hundredths

one and two tenths

400

40.3

forty and three tenths

500

4365.403

four thousand, three hundred sixty-five and four hundred three thousandths

Expanded Form

100

123.45

(1 x 100) + (2 x 10) + (3 x 1) + (4 x 1/10) + (5 x 1/100)

200

34.2

(3 x 10) + (4 x 1) + (2 x 1/10)

300

0.245

(2 x 10) + (4 x 1/100) + (5 x 1/1000)

400

40.87

(4 x 10) + (8 x 1/10) + (7 x 1/100)

500

1020.403

(1 x 1000) + (2 x 10) + (4 x 1/10) + (3 x 1/1000) 

Rounding Decimals

100

Round to the nearest tenth

4.569

4.6

200

Round to the nearest hundredth

68.157

68.160

68.16

300

Round to the nearest tenth

24.77

24.80

24.8

400

Round to the nearest tenth
12.99

13.00

13

500

Round to the nearest hundredth
19.999

20.000

20