Number Line Addition & Subtraction — Answer Key
Part A: Trace the Words
Trace each word carefully by following the dotted lines.
1. line
2. jump
3. add
4. plus
5. ten
6. six
Part B: Fill in the Blank
Write the missing word or number on each line.
1. Start at 2. Jump forward 3. Land on 5
Starting at 2 and jumping forward 3 lands on 5, so 2+3=5.
2. Start at 4. Jump forward 2. Land on 6
From 4, two jumps forward reach 6, matching 4+2=6.
3. Start at 0. Jump forward 7. Land on 7
Zero plus 7 jumps lands on 7, so 0+7=7.
4. Start at 6. Jump forward 4. Land on 10
Four jumps from 6 reach 10, so 6+4=10.
Part C: True or False?
Read each statement. Circle True or False.
1. Jumping forward on a number line means adding.
True False
Forward jumps increase the value, which is addition.
2. Starting at 3 and jumping forward 2 lands on 1.
True False
3 plus 2 jumps forward lands on 5, not 1.
3. The number of jumps you make is the number you add.
True False
Each forward jump adds 1, so total jumps equal the addend.