Math

adding integers

100

-3+7

4

200

-6+(-5)

-11

300

-12+8=

-4

400

-15+(-9)=

-24

500

-18+25+(-12)=

-5

subtracting integers

100

8-12=

-4

200

5-(-3)=

8

300

-7-4=

-11

400

-9-(-15)=

6

500

-20-(-8)-5=

-17

Same or Different?

100

Are the signs in −4 + (−6) the same or different? What is the sum?

Same; −10

200

Are the signs in −9 + 12 the same or different? What is the sum?

Different; 3

300

Are the signs in 7 + (−15) the same or different? What is the sum?

Different; −8

400

Are the signs in −8 + (−13) the same or different? What is the sum?

Same; −21

500

Are the signs in −25 + 17 the same or different? What is the sum?

Different; −8

Decimal Challenge

100

−2.5 + 4.5 = ?

2

200

−3.2 + (−1.8) = ?

−5

300

6.5 − (−2.5) = ?

9

400

−7.25 + 3.5 = ?

-3.75

500

−8.5 − (−12.75) = ?

4.25

Real world math

100

You have $10 and spend $14. What is your balance?

-4

200

The temperature is −3°C and rises 8°C. What is the new temperature?

5°C

300

A diver is at −6 feet and descends another 4 feet. What is the new depth?

-10 feet

400

Your bank balance is −$7.50. You deposit $12. What is your new balance?

$4.50

500

The temperature is −4.5°C. It drops 3.5°C and then rises 10°C. What is the final temperature?

2°C