Unit 2 Review

Add/Subtract Integers

100

Add: 4 + 5

9

200

Add: (-3) + (-6)

-9

300

Add 5 + (-3) 

2

400

Subtract 4 - (-3)

7

500

Evaluate: 5 - 8 - 3

-6

Multiply / Divide Integers

100

Multiply the integers

(-3)·(2)

-6

200

Divide the integers

-28 ÷ -7?

4

300

Divide the integers

84 / (-4)

21

400

Multiply the integers

-9 * 3 * -2

54

500

Evaluate:

3* (20 / (-2))

-30

Order of Operations

100

Solve

(-3)·(2) + 7

1

200

Solve

-48 ÷ 6 + (-32)

-40

300

Solve

-12 - (-5) + 4 + (-18)

-21

400

Solve

-3 · 4 + (-10) ÷ (-5)

-2

500

Evaluate

 (2)[6 - (-3)] + 3

21

Modelling

100

How many zero pairs does adding 5 + (-4) show?

4

200

Model -8 / (-4 ) = 2 using chips.

Check the board.

300

Model 3 x (-2) = -6 using the number line.

Check the board

400

Model -3 + -4 = (-7) using negative chips

8 units

500

Model 5 - (-2) = 7 using chips

-.375

Word Problems

100

When I woke up this morning the temperature was 2 degrees below zero. The temperature rose 18 degrees. Then it dropped 7. What temperature is it now?

9 degrees

200

Douglas the boxer went to Doggy Daycare 4 times this week. I spent $21 each time. Represent how much I spent each day with an integer.

-84 dollars

300

Antonio went to the mall to go holiday shopping. His grandma gave him $40 to spend. He spent $11 on an action figure and another $7 on a necklace. He then found $15 dollars in his jeans. Excited, he bought a pretzel for himself and his brother that cost him 13 dollars. How much did Antonio have at the end of the day?  

$24

400

Coach Miller played frisbee golf. He kept track of his score per round: 7, -9, -3, 14, -8. What was his total score after 5 rounds?

1

500

A small town in Alberta recorded the following temperatures 3^OC, 5^OC, (-2)^OC, 0^OC, -1^OC. What is the mean daily temperature in the town?

[3 + 5 + (-2) + 0 + (-1)] / 5 

= 5/5

=1^OC