Investigation 1

Investigation 2

Investigation 3

Investigation 4

Potpourri

100 pt 100 pt 100 pt 100 pt 100 pt

200 pts 200 pts 200 pts 200 pts 200 pts

300 pts 300 pts 300 pts 300 pts 300 pts

400 pts 400 pts 400 pts 400 pts 400 pts

500 pts 500 pts 500 pts 500 pts 500 pts

At one point in Math Fever, two score are as follows:

SuperBrains: -450 Rocket Scientists: 250

What is the difference in points for each pair of teams?

A. 200

B. 700

C. 350

D. 600 Category 1 – 100pt

A chip board contains 14 red chips (negative) and 6 black chips (positive). If you remove 3 red chips what total value is left?

A. 5 red chips

B. 5 black chips

C. 11 red chips

D. 23 red chips

Category 1 – 200 pts

What is the change in temperature when the thermometer reading moves from 30° to -12°.

A. 18°

B. -18°

C. -42°

D. 42°

Category 1 – 300 pts

The temperature reading on a thermometer is -22°F. What is the new reading after a -12° change?

A. 10°F

B. -34°F

C. -10°F D. 34°F

Category 1 – 400 pts

During one week, the high temperature was 26°F. The low temperature is -12°F. What is the halfway temperature?

A. 38°

B. 19°

C. 4°

D. 7°

Category 1 – 500 pts

Find the missing number.

-13 + n = 30

A. 18

B. -23

C. 17

D. 43

Category 2 – 100 pt

-34 – (-22) =

A. -12

B. -56

C. -16

D. 48

Category 2 – 200 pts

A.

B.

C.

D.

Category 2 – 300 pts

4

3

8

5

8

1

12

2

4

2

6

2

Which is a related fact to this problem?

23 + -32 = -9

A. -9 + 23 = -32

B. -9 – (-32) = 23

C. -32 + 9 = 23

D. -32 – (-9) = 23

Category 2 – 400 pts

Which answer has (-5, 3)(-4,0) and (4,-4)?

A. F, D, and H

B. G, D, and A

C. G, Z, and A

D. L, R, and A

Category 2 – 500 pts

In the Number Relay, Aurelia passes the point 0 running 4 meters per second to the left. Where is she 6 seconds later?

A. -4 x 6 = -24 meters

B. -4 x -6 = 10 meters

C. 4 x 6 = 24 meters

D. -4 x -6 = 24 meters

Category 3 – 100 pt

What is a fact family for -8 × 9 = -72?

A. 9 x 8 = 72 -72 ÷ 9 = -8 -72 ÷ -8 = 9

B. 9 x -8 = -72 -9 ÷ -72 = 8 -72 ÷ -8 = 9

C. 9 x -8 = -72 -72 ÷ 9 = -8 -8 ÷ -72 = 9 D. 9 x -8 = -72 -72 ÷ 9 = -8 -72 ÷ -8 = 9

Category 3 – 200 pts

-5.6 ÷ 0.02

A. -28

B. 28

C. -280

D. -2.8

Category 3 – 300 pts

Chris an Elizabeth are making a Integer Product Game in which players need three products in a row to win. What six factors do they need for their game?

A. -10, -5, -3, 3, 5, 10

B. -6, -5, -3, 3, 5, 6

C. -9, -5, -4, 4, 5, 9

D. -6, -4, -3, 3, 4, 6

Category 3 – 400 pts

-30 30 15 -1536 -36 9 -925 -25 18 -18

A. -6 2

B. -2

C. -8 25

D. -1 2

Category 3 – 500 pts

15

12

5

2

Evaluate -6 ÷ 2 + (-4)•3²

A. -39

B. -27

C. -63

D. 5.4

Category 4 – 100 pt

Find the missing part to make the sentence true.

4 × (5 + ) = 4 × 5 + 4 × 3

A. 5

B. 3

C. 4

D. x

Category 4 – 200 pts

What is the expression in factored form?

-8 • 4 – (-8) • 3

A. -8(4 + 3)

B. 4(-8 – 3)

C. -4(-8 + 3)

D. -8(4 – 3)

Category 4 – 300 pts

What number sentence would describe this rectangle?

6

2 5

A. 6(2 + 5) = 6(2) + 6(5)

B. 6(5) + 5(6) = 6(2 + 5)

C. 6(2 × 5) = 6(2) × 6(5)

D. 6(2 + 5) = 6(2) × 6(5)

Category 4 – 400 pts

Gina is shopping for birthday gift bags. She needs 6 gift bags. If the bag cost $1.39 each and the candy treats cost $4.25 each, how much total money will Gina spend on the birthday gift bags?

A. $11.64

B. $35.46

C. $33.84

D. $0.36

Category 4 – 500 pts

The absolute value of a number is the ________ the number is away from _________.

A. zero, distance

B. left, zero

C. right, zero

D. distance, zero

Category 5 – 100 pt

Without computing the answers, predict how the answers in the pair will compare.

-7 + -8 and -7 – 8

A. different answers and -7 + -8 is greater

B. different answers and -7 – 8 is greater

C. same answer

D. 0

Category 5 – 200 pts

8 × (-6) × (-2)

A. 96

B. 84

C. -16

D. -96

Category 5 – 300 pts

4 + 3(6 + 8) - 10

A. 88

B. 36

C. 3

D. 33

Category 5 – 400 pts

If -n = 8, what does n equal?

A. -1

B. 0

C. -8

D. 8

Category 5 – 500 pts