Addition
Subtraction
Mixed Operations
Word Problems
Challenge Round
100

What is 5+(−3)?

2

100

What is 7 - 4? 

3

100

−3 + 9 = ?

6
100

The temperature is 6°C. It drops 10°C. What’s the new temperature?

-4°C

100

True or False: −6 + 10 = −16

False. It is equal to 4

200

Simplify: −8 + 6.

-2

200

Simplify: −3 − 5

-8

200

−10 − (−4)

-5

200

A football team gains 15 yards and loses 20 yards. What’s the total?

-5 yards

200

Which is greater: −12 + 7 or −15 + 9?

-6 is greater.

300

Evaluate: −12 + (−7).

-19

300

Calculate: 12 − (−9)

21

300

−15 + 8 − (−2) = ?

-5

300

A hiker is at 200 m above sea level. He descends 350 m. Where is he?

-150 m

300

Fill in the blank: −20 − x = −5. What is x?

x = -15

400

A mountain climber is at -150 m and climbs up 75 m. Where is he now?

-75

400

A submarine is at -120 m. It dives 60 m deeper. What’s its new depth?

-180

400

Simplify: −50 − 25 + 40

-35
400

Maria owes 75 pesos. She pays back 40 pesos. How much does she still owe?

-35 pesos

400

Write an integer equation for: “The temperature was -5, it increased by 12.”

  -5 + 12 = 7

500

Simplify: −250 + 180 + (−75)

-145

500

Simplify: −40 − (−25) − 30

-45

500

−100 + 75 − (−50) + (−25)

0

500

A company lost 120,000 on Monday, gained 85,000 on Tuesday, and lost 25,000 on Wednesday. What’s the total balance?

-60,000

500

A diver is at -75 m. He goes down 50 m, up 80 m, and down 30 m. What’s his final position?

-75 m

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