Number Patterns and Rules
Find, describe, and continue number patterns
Number Patterns and Rules
Find, describe, and continue number patterns
Math - Grade 2-3
- 1
Continue the pattern: 5, 10, 15, 20, __, __, __.
Count by 5s.
The missing numbers are 25, 30, and 35. The rule is add 5 each time. - 2
What is the rule for this pattern: 2, 4, 6, 8, 10?
The rule is add 2 each time. Each number is 2 more than the number before it. - 3
Fill in the missing numbers: 30, 27, 24, __, __, 15.
Look at how much the numbers go down each time.
The missing numbers are 21 and 18. The rule is subtract 3 each time. - 4
A frog jumps forward 10 spaces each time on a number line. It starts at 0. Write the first 5 numbers it lands on.
Skip count by 10s starting after 0.
The frog lands on 10, 20, 30, 40, and 50. The rule is add 10 each time. - 5
Find the missing number in the pattern: 7, 14, 21, __, 35, 42.
The missing number is 28. The rule is add 7 each time. - 6
Look at the input and output table. Input 1 gives output 3. Input 2 gives output 6. Input 3 gives output 9. What is the output for input 4?
The outputs count by 3s.
The output for input 4 is 12. The rule is multiply the input by 3, or add 3 more each row. - 7
Mia writes this pattern: 100, 90, 80, 70, __, __. Fill in the blanks and write the rule.
The missing numbers are 60 and 50. The rule is subtract 10 each time. - 8
Which number does not belong in this pattern: 4, 8, 12, 15, 20, 24? Explain your answer.
Check if each number is 4 more than the number before it.
The number 15 does not belong. The pattern should add 4 each time, and 16 should come after 12. - 9
Draw or write the next three numbers in this pattern: 1, 3, 5, 7, __, __, __.
The next three numbers are 9, 11, and 13. The rule is add 2 each time. - 10
A bead pattern uses 2 red beads, then 4 blue beads, then 6 green beads, then 8 yellow beads. If the number pattern continues, how many beads are in the next group?
Look at the numbers 2, 4, 6, and 8.
The next group has 10 beads. The rule is add 2 beads for each new group. - 11
Complete the pattern and describe the rule: 3, 6, 12, 24, __.
Each number is two times the number before it.
The missing number is 48. The rule is double the number each time. - 12
Sam saves money each week. He has $5 after week 1, $10 after week 2, $15 after week 3, and $20 after week 4. How much money will he have after week 5 if the pattern continues?
Sam will have $25 after week 5. The rule is add $5 each week. - 13
Find the rule and the next two numbers: 50, 45, 40, 35, __, __.
The numbers are getting smaller by the same amount each time.
The next two numbers are 30 and 25. The rule is subtract 5 each time. - 14
Tiles are arranged in rows. Row 1 has 3 tiles, row 2 has 6 tiles, row 3 has 9 tiles, and row 4 has 12 tiles. How many tiles will row 5 have?
Row 5 will have 15 tiles. The rule is add 3 tiles for each new row. - 15
Make your own number pattern with at least 6 numbers. Write the rule for your pattern.
Choose a rule such as add 2, add 5, subtract 10, or double the number.
One possible answer is 6, 12, 18, 24, 30, 36. The rule is add 6 each time. Other correct patterns are possible if the rule matches the numbers.