Integers and rational numbers.

Word problem

100

• If it is -25F in Rantoul and it is 75F in Honolulu, what is the temperature difference between the two cities?

A) -125
B) 50
C) -50
D) 100

100

200

• 
  2. On Tuesday the mailman delivers 3 checks for $5 each and 2 bills for $2 each. If you had a starting balance of $25, what is the ending balance?

A) 36
B) 26
C) -26
D) 6

36

300

•  monkey sits on a limb that is 25 ft above the ground. He swings up 10 ft, climbs up 6 ft more then jumps down 13 ft. How far off the ground is the monkey now?

A) 31 ft
B) 25 ft
C) 28 ft
D) 54 ft

28 Ft

400

1. Katherine is very interested in cryogenics (the science of very low temperatures). With the help of her science teacher she is doing an experiment on the affect of low temperatures on bacteria. She cools one sample of bacteria to a temperature of -51°C and another to -76°C. What was the temperature difference in the two experiments? A) 25 B) 127 C) -25 D) -127

25

500

• 5. During the football game, Justin caught three passes. One was for a touchdown and went 52 yards. The other was for a first down and was for 17 yards. The other was on a screen pass that did not work so well and ended up a gain of -10 yards. What was the total yardage gained by Justin on the pass plays?

A) -39
B) 62
C) 59
D) 69

59

mutliplying And dividing

100

-2 x 10 = 

-20

200

-46/2

-23

300

-12 x -4

-48

400

-34 x -34

-1156

500

-0.34 x (- 2/5)

0.136

Adding and subtracting

100

-14 + 5 =

-9

200

40 - (-32) = 

72

300

(-80) + (-45)

-125

400

-234 + 78 + (-89) =

-245

500

-525% + 3.14 - (-3/4) =

-136

Negative or positive?

100

The submarine was traveling at a depth of 200 feet below sea level.

-200

200

On a sale of a stock, Martin had a gain of $300

300

300

2. Jason lost $30 when he accidentally left his wallet at the beach.

-30

400

Jack’s golf score was 6 strokes under par today.

-6

500

Is 0 positive or negative?

 Neither