Missing Numbers and Number Lines Quiz

Grade 1 · Math · Quiz

Test your number line skills with 10 questions about missing numbers and sequences.

Questions

What is the missing number? 12, ___, 14, 15
1. 11
2. 13
3. 16
4. 12
Show answer
Answer: 13
12, 13, 14, 15 — counting up by 1
What comes just before 20? ___
Show answer
Answer: 19
19 comes just before 20 on the number line
Numbers get smaller as you move to the right on a number line.
Show answer
Answer: False
Numbers get bigger (larger) moving right on a number line
Fill in the missing number: 5, 10, ___, 20
1. 12
2. 14
3. 15
4. 16
Show answer
Answer: 15
5, 10, 15, 20 — skip counting by 5
The number 0 is the smallest number you can show on a number line.
Show answer
Answer: False
Number lines extend below 0 into negative numbers, though we focus on positive numbers in Grade 1
The missing number: 7, 8, ___, 10
Show answer
Answer: 9
7, 8, 9, 10 — counting up by 1
On a number line, what is 2 steps to the right of 13?
1. 11
2. 15
3. 12
4. 14
Show answer
Answer: 15
Start at 13, take 2 steps right: 14, 15
6, 7, 8, 9, 10 is in the correct number line order.
Show answer
Answer: True
6, 7, 8, 9, 10 counts up by 1 — correct number line order
Fill in: 0, 3, 6, ___, 12
1. 7
2. 8
3. 9
4. 10
Show answer
Answer: 9
0, 3, 6, 9, 12 — skip counting by 3
What number is exactly between 10 and 20? ___
Show answer
Answer: 15
15 is exactly halfway between 10 and 20