Pre-Algebra

Add/Sub +/-

100

In the equation p – q = p + (−q) why is subtracting q the same as adding its opposite?

Because adding a negative is the same as subtracting a positive

200

how would you describe the movements on a number line (starting at zero) for −3+5?

Moving 3 units left, then 5 units right on a number line

300

A submarine starts at sea level, descends 120 meters, then rises 45 meters. Where is it now?

75 meters below sea level

400

What is 8 − (−3)

11

500

What is −3 − (−8)?

5

Mult/div +/-

100

Solve 9(-7)

-63

200

-42÷(-7)

6

300

23 x 7

161

400

81÷(-3)

-27

500

7 x 4 ÷ 2

14

Fractions & Decimals

100

-4.2 + 7.8

3.6

200

-3/4 – 2/3, write your answer in simplest form.

-1 5/12

300

2.5(-0.8)

-2

400

What is the product of -3/4 and 2/5

-3/10

500

What is 9/10 ÷ -3/5? Write your answer in simplest form.

-1 1/2

skip counting with fluency

100

Skip count by 3s

3, 6, 9, 12, 15, 18, 21, 24, 27, 30

200

Skip count by 9s

9, 18, 27, 36, 45, 54, 63, 72, 81, 90

300

Skip count by 4s

4, 8, 12, 16, 20, 24, 28, 32, 36, 40

400

Skip count by 8s

8, 16, 24, 32, 40, 48, 56, 64, 72, 80

500

Skip count 6s

6, 12, 18, 24, 30, 36, 42, 48, 54, 60

Vocab & mean, median, mode, & range

100

Given the set { 8, 7, 9, 56, 7, 2, 6, 21, 9, 65, 8 } 

What is the mode?

7, 8, 9

200

What mathematical function is the vocab word Product referring to?

multiplication

300

Given the set { 8, 7, 9, 56, 7, 2, 6, 21, 9, 65, 8 } 

What is the median?

8

400

What mathematical function is the vocab word quotient referring to?

division

500

Given the set { 8, 7, 9, 56, 7, 2, 6, 21, 9, 65, 8 } 

What is the mean?

18