Math Review #1

Decimal Forms

100

Two hundred forty five and twenty three hundredths in standard form

245.23

200

90.931 in word form

Ninety and nine hundred thirty one thousandths

300

56.743 in expanded form

(5x10) + (6x1) + (7x1/10) + (4x1/100) + (3x1/1000)

400

Five hundred three and two tenths in standard form

503.2

500

(4x100) + (3x1) + (2x1/100) + (9x1/1000) in standard form

403.029

Comparing Decimals

100

87.639  _____  78.936

>

200

876.453 _____  876.53

<

300

35.46  ______   35.460

=

400

217.432  ______  21.7432

>

500

335.533  ______  335.553

<

Rounding Decimals

100

Round 42.83 to the nearest tenth

42.8

200

Round 743.456 to the nearest hundredth

743.46

300

Round 96.425 to the nearest whole number

96

400

Round 652.298 to the nearest hundredth

652.3

500

Round 339.97 to the nearest tenth

340

+ and - Decimals

100

243.98 + 415.32

659.30

200

647.34 + 279.43

926.77

300

63.54 - 45.36

18.18

400

20.008 - 17.564

2.444

500

367.82 + 13.549

381.369

Multiplication

100

23 x 67

1,541

200

57 x 43

2,451

300

9.6 x 8.4

80.64

400

741 x 29

21,489

500

8.32 x 9.6

79.872