Explanation:
Let’s go through each number pattern one by one and find the rule, then fill in the next three numbers.
1.
1, 3, 5, 7, 9, __, __, __
These are odd numbers increasing by 2 each time.
After 9: 9 + 2 = 11, 11 + 2 = 13, 13 + 2 = 15
→
11, 13, 15
2.
2, 4, 6, 8, 10, __, __, __
Even numbers, adding 2 each time.
After 10: 12, 14, 16
→
12, 14, 16
3.
24, 34, 44, 54, __, __, __
Each number increases by 10.
54 + 10 = 64, 64 + 10 = 74, 74 + 10 = 84
→
64, 74, 84
4.
3, 6, 9, 12, 15, __, __, __
Multiples of 3 (or +3 each time).
15 + 3 = 18, 18 + 3 = 21, 21 + 3 = 24
→
18, 21, 24
5.
35, 40, 45, 50, __, __, __
Increasing by 5 each time.
50 + 5 = 55, 55 + 5 = 60, 60 + 5 = 65
→
55, 60, 65
6.
11, 22, 33, 44, __, __, __
Multiples of 11: 11×1=11, 11×2=22, etc.
Next: 11×5 = 55, 11×6 = 66, 11×7 = 77
→
55, 66, 77
7.
9, 19, 29, 39, __, __, __
Each number increases by 10.
39 + 10 = 49, 49 + 10 = 59, 59 + 10 = 69
→
49, 59, 69
Now double-check all:
1. +2 →
✔
2. +2 →
✔
3. +10 →
✔
4. +3 →
✔
5. +5 →
✔
6. +11 →
✔
7. +10 →
✔
All consistent.
Final Answer:
1. 11, 13, 15
2. 12, 14, 16
3. 64, 74, 84
4. 18, 21, 24
5. 55, 60, 65
6. 55, 66, 77
7. 49, 59, 69
Parent Tip: Review the logic above to help your child master the concept of number patterns worksheets.