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.

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

   -56
2. 2.

   Pia rings a bell for a bonus question. What is 12 × (-7)?

   -84
3. 3.

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

   -13
4. 4.

   Esme finds a division in the math book. What is (-91) ÷ (-7)?

   13
5. 5.

   Jun draws a division card from the jar. What is (-84) ÷ (-12)?

   7
6. 6.

   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
7. 7.

   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
8. 8.

   Esme writes the product (-3) × 4. Which story matches it?

   • A whale sinks 3 m once, then waits 4 minutes.
   • A whale at -3 m sinks 4 more meters.
   • A whale rises 3 m each minute for 4 minutes.
   • A whale sinks 3 m each minute for 4 minutes.
9. 9.

   Jun writes the product 6 × (-3). Which story matches it?

   • A kite drops 3 m each second for 6 seconds.
   • A kite drops 3 m once, then 6 seconds pass.
   • A kite rises 3 m each second for 6 seconds.
   • A kite at 6 m drops 3 more meters.
10. 10.

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

    • A whale sinks 2 m a minute; 5 minutes ago it was 10 m higher.
    • 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 at -2 m sinks 5 more meters.