Number Lines — Answer Key
Part A: Sort the Words
Sort each word or number into the correct category box.
1. Sort these points by whether they land ON a whole number tick or exactly HALFWAY between two ticks.
On a Whole Tick
12208 Halfway Between Ticks
halfway between 5 and 6halfway between 12 and 13halfway between 0 and 1 Ticks mark whole numbers like 12, 20, or 8. Halfway points sit evenly between two neighboring ticks, not on a tick.
Part B: Fill in the Blank
Write the missing word or number on each line.
1. The point exactly halfway between 12 and 13 is between 12 and 13.
Halfway between 12 and 13 sits between the two ticks 12 and 13, closer to neither one.
2. Halfway between 5 and 6 is between 5 and 6.
Halfway points sit between two ticks, so halfway between 5 and 6 lies between 5 and 6.
3. If a dot sits right in the middle between 9 and 10, it is halfway between the two ticks.
A dot in the exact middle of two neighbors is called halfway, the same distance from each tick.
4. A point halfway between 0 and 1 is closer to a tick than a point that is not between them.
Halfway means equal distance from both ticks, so it is not closer to one tick than the other.
5. Halfway between 20 and 21 sits between the ticks 20 and 21.
The halfway point lies between the two ticks named, so it is between 20 and 21 on the line.
Part C: True or False?
Read each statement. Circle True or False.
1. A point halfway between 12 and 13 lands exactly on a whole number tick.
True False
Halfway means between two ticks, so the point does not land on either whole number tick.
2. Halfway between 7 and 8 is the same distance from 7 as it is from 8.
True False
A halfway point is equally far from both neighbors, so the distance to 7 matches the distance to 8.
3. The number 15 is halfway between 14 and 16 on the number line.
True False
15 sits one tick past 14 and one tick before 16, so it is the halfway point between them.
4. Halfway between 3 and 4 is a whole number.
True False
There is no whole number between 3 and 4, so the halfway point is not a whole number tick.