Add positive and negative whole numbers

Answer Key - Grade 7 Math Worksheet - Building Confidence

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

1. 1.

   Bo winds up a toy frog, which looks very determined. It starts at 3 on a number line and hops 8 left, then 2 left. Where does the frog stop?

   -7
2. 2.

   Esme's toy car starts at -6 on a number line. It rolls 2 right, then zooms 9 right. Where does the car stop?

   5
3. 3.

   Jun's toy train starts at 5 on a number-line track. It chugs 7 left, then 4 more left. Where does the train stop?

   -6
4. 4.

   Luz pulls a puzzle card from the math club jar. The card says (-3) + 8 + (-7). What is the sum?

   -2
5. 5.

   Milo writes a puzzle on the whiteboard, then caps the marker with a flourish. What is 6 + (-9) + 5?

   2
6. 6.

   Pia opens the math book to a page of number puzzles. What is (-8) + 3 + 9?

   4
7. 7.

   On a whale watch, Ren spots a whale just under the water, at -4 m. What change in meters brings the whale up to the surface, 0 m?

   4
8. 8.

   After two tricky questions, Tala's quiz team has -6 points. What score on the next question brings the team back to 0 points?

   6
9. 9.

   Zee's sled sits at the top of a small hill, 8 m above the bottom (0 m). What change in height, as a positive or negative number, takes the sled down to the bottom?

   -8
10. 10.

    Ari's kite climbs 8 meters on a gust, then drops 8 meters when the wind takes a nap. What is the total change in the kite's height?

    0