Place Value Review

Rounding

100

Round to the thousandths. 37.3892

37.389

200

Round to the thousandths. 64.8798

64.88

300

Round to the ones. 7.884

8

400

Round to the hundredths. 100.694

100.69

500

Round to the tenths. 11.98

12

Scientific Notation

100

12 x 10³

12,000

200

4.78 x 10⁴

47,800

300

3.56 / 10³

0.00356

400

9.321 x 10²

932.1

500

6.7934 / 10³

0.0067934

Put in Scientific Notation

100

0.0689

6.89 / 10²

200

0.74

7.4 / 10

300

4612

4.612 x 10³

400

352.7

3.527 x 10²

500

0.4184

4.184 / 10

Evaluating Expressions

100

3.2x + 7 + 4x

7.2x + 7

200

4.2b - 7.4a + 3.7b - 2.4a

7.9 - 9.8a

300

5.38c² + 4 + 4.11c + 7.2c²

12.58c² + 4.11c + 4

400

17h + 4 - 8h + 1

9h + 5

500

22v - m + 2m + 9v - 3m

29v - 2m

Solving Equations

100

2a(b+1) when a = 2.4 and b = 1.1

10.08

200

lw when l = 12.5 and w = 6.5

81.25

300

x - 2.7 = 10.1

12.8

400

2.4m = 4.8

2

500

8.25 = 4a + 1.25

1.75