Multiply and divide positive and negative whole numbers

Answer Key - Grade 7 Math Worksheet

Circle the best answer, or write your answer on the line.

1. 1.

   Milo balances a math puzzle on the scales. What is (-6) × 9?

   -54
2. 2.

   Noah writes a challenge on the whiteboard. What is (-8) × 7?

   -56
3. 3.

   Tala draws a challenge card from the jar. What is (-6) × (-11)?

   66
4. 4.

   Bo writes the next division on the board. What is 65 ÷ (-5)?

   -13
5. 5.

   The air at Kira's campsite cools 3°F each hour, a rate of -3°F per hour. Four hours ago is hour -4. What was the temperature 4 hours ago, compared with now? (Warmer is positive.)

   12
6. 6.

   Luz's balloon rises 4 m each minute, a rate of 4 m per minute. Six minutes ago is minute -6. Where was the balloon 6 minutes ago, compared with now? (Up is positive.)

   -24
7. 7.

   Milo's sled climbs a hill at 5 m per minute. Seven minutes ago is minute -7. Where was the sled 7 minutes ago, compared with now? (Up is positive.)

   -35
8. 8.

   Noah watches a whale sink 2 m each minute, a rate of -2 m per minute. Five minutes ago is minute -5. Where was the whale 5 minutes ago, compared with now? (Up is positive.)

   10
9. 9.

   Ari says a negative sign in front of a quotient can move inside. Which expression equals -(45 ÷ 9)?

   • 45 ÷ 9
   • (-45) ÷ (-9)
   • 9 ÷ (-45)
   • 45 ÷ (-9)
10. 10.

    Kira writes the product (-2) × (-5). Which story matches it?

    • A whale sinks 2 m once, then 5 minutes pass.
    • A whale sinks 2 m a minute for 5 minutes and is 10 m lower, at the end of the dive
    • A whale sinks 2 m a minute; 5 minutes ago it was 10 m higher.
    • A whale at -2 m sinks 5 more meters.