Number Line Addition & Subtraction — Answer Key
Part A: Multiple Choice
Circle the best answer for each question.
1. Start at 4. Jump forward 6. Where do you land?
A) 8
B) 9
C) 10
D) 11
Four plus six forward jumps lands on 10.
2. Start at 13. Jump back 5. Where do you land?
A) 7
B) 8
C) 9
D) 10
Thirteen minus five back jumps lands on 8.
3. Start at 9. Jump forward 3, then forward 4. Where do you land?
A) 14
B) 15
C) 16
D) 17
Two forward sets from 9 land on 16.
4. Start at 18. Jump back 6, then back 3. Where do you land?
A) 8
B) 9
C) 10
D) 11
Two backward sets from 18 land on 9.
Part B: Fill in the Blank
Write the correct answer on each line.
1. Start at 7. Jump forward 5. Land on 12
Seven plus five forward jumps land on 12.
2. Start at 16. Jump back 9. Land on 7
Sixteen minus nine back jumps land on 7.
3. Start at 2. Jump forward 8, then back 3. Land on 7
Forward 8 and back 3 from 2 lands on 7.
4. Start at 11. Jump back 4, then forward 7. Land on 14
Back 4 and forward 7 from 11 lands on 14.
5. Start at 6. Jump forward 6, then forward 3. Land on 15
Two forward sets from 6 land on 15.