Chapter 1 Test

Adding, Subtracting, Multiplying, and Dividing Integers

100

(-99)+137

38

200

27+(-24)

3

300

(-14)-14

-28

400

(-15)-2

-17

500

12-(-4)

16

Fractions and Decimals

100

Write the fraction as a decimal.

2/5

0.4

200

Write the fraction as a decimal.

1  7/11

1.63 (repeating)

300

Write the decimal as a fraction in simplest form.

0.32

32/100 = 8/25

400

Write the decimal as a fraction in simplest form.

0.8

8/10 = 4/5

500

Write the decimal as a fraction in simplest form.

3.75

3  75/100 = 3  3/4

Ordering Numbers and Story Problems

100

Least to Greatest

-4,   8,   -2,   -6,   3

-6,   -4,   -2,   3,   8

200

Greatest to Least

9/22,   0.83,   7/8,   0.4,   44/44

44/44,   7/8,   0.83,   9/22,   0.4

300

About 1/25 of a toad's eggs survive to adulthood. About 0.25 of a frog's eggs and 1/5 of a green turtle's eggs survive to adult hood. Which animal's eggs have the highest survival rate?

Frog.

400

Both Barrow, Alaska and Needles, California have desert climates. The average low temperature in January is -28.6 degrees for Barrow and 43.5 degrees for Needles. Find the difference between these temperatures.

72.1 degrees 

500

A submarine is cruising at a depth of 448.6 meters. The captain issues this order: 

"drop 42.5 meters and stay at that level for 10 minutes. Repeat 4 more times."

What is the submarine's depth after these moves?

-661.1 meters

Adding and Subtracting Rational Numbers

100

27.9+(-3.1)

24.8

200

4.5-(-3.8)

8.3

300

2  1/3 + (-3  2/3)

-1  1/3

400

7  2/7 - (-2  3/7)

9  5/7

500

2  1/3 - (-3  2/3)

6

Multiplying and Dividing Rational Numbers

100

(-3/4)(2/5)

-3/10

200

0.32(-0.75)

-0.24

300

(-12/15)(-1  1/4)

1

400

-3/4 / 3/10

-2  1/2

500

(-1  2/5) / (-1  5/10)

14/15