Number Lines — Answer Key
Part A: Sort the Words
Sort each word or number into the correct category box.
1. Sort each number by whether it is CLOSER TO 20 or CLOSER TO 80 on the number line.
Closer to 20
221531 Closer to 80
788573 Numbers with fewer jumps to 20 belong in the first group, and those with fewer jumps to 80 belong in the second.
Part B: Fill in the Blank
Write the missing word or number on each line.
1. On a tens line, 34 sits between the ticks 30 and 40.
34 is bigger than 30 but smaller than 40, so it sits between those two ticks.
2. The tick right before 70 on a number line by tens is 60.
Each tick is 10 apart, so the tick before 70 is 60.
3. Between 50 and 60, the number 55 sits right in the middle.
55 is 5 from 50 and 5 from 60, so it sits in the middle of the two ticks.
4. The number 48 sits between 40 and 50 on a tens number line.
48 is greater than 40 and less than 50, so it sits between those ticks.
5. On a tens line, the tick that comes just before 10 is 0.
Zero is the first tick, and one jump of 10 takes you from 0 to 10.
Part C: True or False?
Read each statement. Circle True or False.
1. The number 63 sits between the ticks 60 and 70 on a tens number line.
True False
63 is greater than 60 and less than 70, so it fits between those ticks.
2. The number 29 is closer to the tick 30 than to the tick 20.
True False
29 is just 1 away from 30, but 9 away from 20, so it sits closer to 30.
3. The number 14 lands right on a tick mark on a tens number line.
True False
Ticks on a tens line fall at 10 and 20. 14 sits between them, not on a tick.
4. The tick before 40 on a tens line is 30.
True False
Since ticks are 10 apart, the tick just before 40 is 30 on the number line.