semester 1 review

Use the number line to find the sum.
4 + (-5) =

• -1
• 1
• -9
• 9

Use the number line to find the sum.
-7 + 2 =

• -5
• 5
• -9
• 9

What is an integer?

• A whole number

• A fraction

• A negative number only

• Negative and positive whole number and 0

What is the opposite of -3?

• 3
• 0
• -1/3
• 1/3

Order from greatest to least: -12, 15, -1, 3, 

• 15, 3, -1, -12
• 15, 3, -12, -1
• -1, -12, 3, 15
• -12, -1, 3, 15

• 4/5

• 3/4

• 3/1

• 1/3

What numbers represent points A, B and C on the number line? Check all that apply

• -4/5

• 0.2

• -0.2

• -0.4

• 2/5

2.3

+ 3.4

When you multiply two decimal numbers, you line up the digits not the decimal points.

• True

• False

When you add two decimal numbers, you do not need to line up the decimal points.

• True

• False