Number Patterns
Finish the pattern:
2, 4, 6, 8, ?
10
In: Out:
7 12
9 14
14 19
15 20
Add 5
Is the number 2 prime or composite?
Prime
Jack counts by 3s starting at 0. What will be the 7th number in his sequence?
18
Finish the pattern:
6, 10, 14, 18, ?
22
In: Out:
5 10
10 15
15 20
20 25
Add 5
Is the number 6 prime or composite?
Composite
Emma is creating a number pattern. She starts with 2 and adds 5 each time. What will be the 6th number in her sequence?
27
Start at 3
Multiply by 2
What are the first 3 terms?
3, 6, 12
In: Out:
2 6
3 9
4 12
5 15
Multiply by 3
Is the number 55 prime or composite?
Composite
The school band is arranging chairs: 1 in the first row, 3 in the second row, 5 in the third row. If this pattern continues, how many chairs will be in the 6th row?
11 chairs
Start at 50
Subtract 7
What are the first 3 terms?
50, 43, 36
In: Out:
12 6
13 7
14 8
15 9
Subtract 6
Is the number 37 prime or composite?
Prime
Tom is making a countdown for a rocket launch. He starts at 20 and counts down by 2s. What number will he say right before "Blast off!"?
2
Start at 76
Divide by 2
What are the first 3 terms?
76, 38, 19
In: Out:
20 4
30 6
40 8
50 10
Divide by 5
23 or 29
Jake is making a growing pattern with toothpicks. He uses 3 toothpicks for the first figure, 6 for the second, and 9 for the third. How many toothpicks will he need for the 5th figure if this pattern continues?
15 toothpicks