Sum it Up
Difference Makers
Product Power
Divide and Conquer
Math in Action
100

Find the sum: 

(-89.6) + 89.6

(-89.6) + 89.6 = 0

100

Solve: 

13 - 19 = 

13 + (-19) = -6

100

Multiply: 

9 x -5 =

9 x -5 = -45

100

Divide and solve: 

(-35) ÷ 5 = 

-7

100

The temperature outside was -5 degrees and it rose 10 degrees. What is the temperature outside now?

5 degrees

200

Is my sum positive or negative? 

63 + (-191) =

Negative 

-128

200

Solve: 

(-12) - 22 =

(-12) + (-22) = -34

200

Multiply: 

(-8) x (-3) =

(-8) x (-3) = 24

200

Divide: 

39 ÷ (-13) =

-3

200

It was 6 degrees outside and it dropped 8 degrees, what is the temperature now?

-2 degrees

300

Find the sum:

-12.3 + 8.1 =

-12.3 + 8.1 = -4.2

300

Find the missing value: 

? - (-8) = -6

*Hint: rewrite it as an addition equation.

? + 8 = -6

? = -14

300

Multiply: 

-50 x 0.5 = 

-50 x 0.5 = -25

300

Divide:

(-24) ÷ (-6) =

4

300

A hiker was climbing up a mountain and was at an elevation of 350 feet. They ended the day at an elevation of -250. What was their change in elevation?

-600 feet

400

Find the sum: 

-25 + (-73) = 

-25 + (-73) = -98

400

Solve: 

(-13.6) - 18.4 =

(-13.6) + (-18.4) = -32

400

Find the missing value: 

(-6) x ? = 48

(-6) x ? = 48

I know 6 x 8 = 48

Since a negative x negative = positive, then

? = -8

400

Divide: 

154 ÷ (-11) =

-14

400

A submarine was -200 feet below sea level, if it goes back up to the surface in stages of 50 feet, where will the submarine be after 3 stages?

50 x 3 = 150

-200 + 150 = -50 feet

500

The temperature was -7°F and then fell 15°F

-7 + (-15) = -22°F

500

-7.4 - (-11.2)

-7.4 + 11.2 = 3.8

500

Multiply: 

-0.4 x 1.2 =

4 x 12 = 48 (move the decimal point and make negative) 

-0.48

500

Divide: 

(-2/3) ÷ (2/5) =

-2/3 x 5/2 = (-10/6) or (-5/3)

500

Zeke and Brian were walking towards each other in the hallway, making their way towards Brian's locker (0 feet). Zeke was walking east at 5 meters/second and Brian was walking west at -4 meters/second. Where is Brian 10 seconds before they met at his locker?

-4 x (-10) = 40 feet