I.M. Math Chapters 1-2 Review

GCF & Order of Operations

1

What is the GCF of 42 and 54?

6

2

2 x 4 - 7 + 18 = __________

25

3

What is the GCF of 36 and 81?

9

4

3² + (7 - 4) / 8 x 2 - 4

1

5

2²+ (21 + 7 / 2) / 7

6

Fractional Arithmetic

1

1 / 2 + 1 / 3 = _______

5 / 6

2

6 / 11 x 22 / 9 = _________

4 / 3 or 1 1/3

3

3 1/4 - 1 2/5 = _______

1 17/20

4

28 / 3 Divided by 42 / 9 = _________

2

5

1 1/8 Divided by 2 3/16 = ___________

18 / 35

Types of Numbers

1

The counting numbers and 0

(a) Counting Numbers

(b) Integers

(c) Whole Numbers

(c) Whole Numbers

2

Numbers (including fractions and decimals) less than 0

(a) Positive Numbers

(b) Negative Numbers

(c) Natural Numbers

(b) Negative Numbers

3

Numbers (including fractions and decimals) greater than 0

(a) Positive Numbers

(b) Negative Numbers

(c) Whole Numbers

(a) Positive Numbers

4

Numbers that are 1 or greater (1, 2, 3, 4, etc.)

(a) Rational Numbers

(b) Counting Numbers

(c) Whole Numbers

(b) Counting Numbers

5

Whole numbers and their opposites (no fractions or decimals)

(a) Whole Numbers

(b) Counting Numbers

(c) Integers

(c) Integers

Fractional % to Decimals

1

1 / 4 % = _________

0.0025

2

3 / 8 % = 

0.00375

3

12 1 /5 % = __________

0.122

4

7 4 /5 % = ___________

0.078

5

3 / 1,000 % = __________

0.00003

Percent, Percentage, & Base

1

10% of 62

6.2

2

12 is what percent of 64?

18.75 %

3

72 is 40% of what number?

180

4

Find the Percent of Change and Label as an Increase or Decrease:

Original: $30

Final: $12

60% Decrease

5

Find the Percent of Change and Label as an Increase or Decrease:

Original: 80 Ships

Final: 640 Ships

700% Increase