7th Grade Mid-Year Review

One morning, the temperature was 12^o below zero. By noon, the temperature rose 15^o Fahrenheit (F) and then dropped 2^o F by evening.

What was the evening temperature?

• 25^o F

• 1^o F

• -5^o F

• -25^o F

Order these rational numbers from least to greatest:
{ 1, -2, 5.2, -5, 3, -1, 5.21 }

• -1, 1, -2, 3, 5.2, -5, 5.21

• 1, -1, -2, 3, -5, 5.2, 5.21

• 5.2, 5.21, -5, 3, -2, -1, 1

• -5, -2, -1, 1, 3, 5.2, 5.21

Evaluate:

|-12| + |5|

• 17

• -7

• 7

• -17

Evaluate:

| -12 + 4 |

• .8

• 8

• 16

• -16

Which set best represents the set of rational numbers?

• { -4.21..., √7, 2.31... }

Which of the following is a terminating decimal?

Distribute:

3(–2x – 1)

• x+2
• x-1
• -6x-3
• -6x-1

4x + 22 = -34

• -14
• -22
• 16
• -20

What inequality does the number line graph represent?

• x ≥ 3
• x > 3
• x < -3
• x ≤ -3

Simplify:

9x + 7y - 6x - 5y

• 15x + 12y

• 3x + 2y

• 3x² + 2y²

• 5xy