# Worksheet: Number Patterns: Two-Digit Numbers

In this worksheet, we will practice finding missing numbers in counting sequences and number patterns using addition and subtraction rules.

**Q3: **

Complete the pattern: .

- A
- B
- C
- D
- E

**Q4: **

Complete the pattern: .

- A
- B
- C
- D

**Q5: **

Complete the pattern: .

- A
- B
- C
- D

**Q6: **

Complete the pattern .

- A
- B
- C
- D
- E

**Q7: **

Complete the pattern: .

- A
- B
- C
- D

**Q8: **

Complete the pattern: .

- A
- B
- C
- D

**Q9: **

Complete the pattern: .

- A
- B
- C
- D

**Q10: **

Complete the pattern: .

- A
- B
- C
- D
- E

**Q11: **

Complete the pattern: .

- A
- B
- C
- D

**Q12: **

Find the values of and in the following number pattern: .

- A,
- B,
- C,
- D,

**Q13: **

This pattern follows the rule **add 13**:

Select another pattern that follows the same rule.

- A
- B
- C
- D
- E

**Q14: **

Complete the following pattern: .

- A80, 20
- B70, 20
- C70, 10
- D100, 40

**Q15: **

Complete the following pattern: .

- A67, 78
- B68, 79
- C63, 74
- D65, 76

**Q16: **

Write the next two numbers in this sequence.

- A65, 84
- B83, 102
- C71, 90
- D83, 103
- E65, 66

**Q17: **

Find the next two numbers in the pattern.

- A12, 6
- B15, 8
- C18, 12
- D20, 16

**Q18: **

Find the next two numbers in the pattern:

- A30, 36
- B28, 40
- C24, 30
- D21, 24

**Q19: **

Daniel starts at 2 and writes multiples of 2:

He notices a repeating pattern.

What if he starts at 26? Finish his sentence by finding the repeating part of the pattern.

- A6, 8, 3, 4,3
- B6, 8, 3, 2, 4
- C6, 8, 0, 2, 4
- D6, 0, 2, 4,6

**Q20: **

Daniel started writing this number pattern with the rule add 6.

He colors every second number blue.

Describe the pattern the blue numbers will follow.

- Aadd 6
- Badd 12
- Cadd 18

What if he looks at every third number?

What pattern will the green numbers follow?

- Aadd 18
- Badd 6
- Cadd 12