Review

Find the LCD

100

Find the LCD for 1/3 and 2/6.

6

200

Find the LCD for 1/8 and 3/5.

40

300

Find the LCD for 1/12 and 3/8.

24

400

Find the LCD and change the fractions for 2/3 and 1/11.

33

2/3=22/33                1/11= 3/33

500

Find the LCD and change the fractions for 1/2 and 4/9.

18

1/2= 9/18                             4/9= 8/18

Rounding

100

Round to the nearest TENTH.

2.34

2.3

200

Round to the nearest TEN.

456.7

460

300

Round to the nearest WHOLE NUMBER.

123.5

124

400

Round to the nearest HUNDREDTH.

236.879

236.88

500

Round to the nearest WHOLE NUMBER.

9.87

10

Word, Expanded, Standard

100

What is this number in STANDARD form?

twenty seven and two tenths

27.2

200

What is this number in word form?

382,600.57

three hundred eighty two thousand, six hundred and fifty seven hundredths

300

What is this number in expanded form?

67.25

(60 x 1) + (7 x 1) + (2 x 0.1) + ( 5 x 0.01) OR 

(60 x 1) + (7 x 1) + (2 x 1/10) + ( 5 x 1/100)

400

What is this number in expanded form?

2,306.5

(2 x 1,000) + ( 3 x 100) + (6 x 1) + (5 x 0.1)

500

What is this number in standard and word form?

(3 x 10) + (4 x 1) + (5 x 0.1) + (3 x 0.01) + (2 x 0.001)

34.532

thirty four and five hundred thirty two thousandths

Powers of 10

100

4 x 10²

400

200

25.49 x 10²

2,549

300

6.38 x 10³

6,380

400

0.679 x 10⁵

67,900

500

2.406 x 10³

2,406

Work it Out

100

SOLVE: 25 x 27

675

200

SOLVE: 234.67 + 42.5

277.17

300

SOLVE: 457.6 - 264.21

193.39

400

SOLVE: 1,596 divided by 42

38 

500

SOLVE: 1,473 x 64

94,272