Unit 2: 1-6 thru 2-5 Test

Rounding

100

Round 4.56 to the tenths place.

4.6

200

Round 58.293 to the hundredths place.

58.29

300

Round 127.39 to the tens place.

130

400

Round 76.543 to the hundredths place.

76.54

Estimating

100

715 +309 =

700 + 300= 1,000

200

98+ 11.22 =

100 + 11 = 111

300

527.56 + 12.3 =

530 + 12 = 542

400

5.1 + 2.3 + 6.56 =

5 + 2 + 7 = 14

Adding Decimals

100

0.38 + 11.3

11.68

200

0.77 + 14.6

15.37

300

0.33 + 1.74

2.07

400

1.86 + 0.34

2.2

500

145.293 + 1.26552

Round each number to the tenths place before adding.

145.3 + 1.3 = 146.6

Subtracting Decimals

100

8.00 - 0.2

7.8

200

62.837 - 12.837

50

300

73.178 - 39.225

33.953

400

53.954 - 52.636

1.318

Unit 1 Review

100

5 x 10,000

50,000

200

Write 5,582 in expanded form.

5,000 + 500 + 80 + 2

300

Write 1,461,724 in exponent form.

(1 x 10⁶) + (4 x 10⁵) + (6 x 10⁴) + (1 x 10³) + (7 x 10²) + (2 x 10¹) + 4

400

What is 0.007 as a fraction?

7 / 1,000

500

What is 434/1,000 as a decimal?

0.434