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.
9 + 2 = 11
11 + 2 = 13
13 + 2 = 15
→ Next:
11, 13, 15
2.
2, 4, 6, 8, 10, __, __, __
Even numbers, adding 2 each time.
10 + 2 = 12
12 + 2 = 14
14 + 2 = 16
→ Next:
12, 14, 16
3.
24, 34, 44, 54, __, __, __
Each number increases by 10.
54 + 10 = 64
64 + 10 = 74
74 + 10 = 84
→ Next:
64, 74, 84
4.
3, 6, 9, 12, 15, __, __, __
Multiples of 3 (or add 3 each time).
15 + 3 = 18
18 + 3 = 21
21 + 3 = 24
→ Next:
18, 21, 24
5.
35, 40, 45, 50, __, __, __
Adding 5 each time.
50 + 5 = 55
55 + 5 = 60
60 + 5 = 65
→ Next:
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
→ Next:
55, 66, 77
7.
9, 19, 29, 39, __, __, __
Adding 10 each time.
39 + 10 = 49
49 + 10 = 59
59 + 10 = 69
→ Next:
49, 59, 69
Now double-check each:
- #1: 1→3→5→7→9→11→13→15
✔
- #2: 2→4→6→8→10→12→14→16
✔
- #3: +10 each: 24,34,44,54,64,74,84
✔
- #4: +3: 3,6,9,12,15,18,21,24
✔
- #5: +5: 35,40,45,50,55,60,65
✔
- #6: ×11: 11,22,33,44,55,66,77
✔
- #7: +10: 9,19,29,39,49,59,69
✔
All correct.
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 patterns worksheet grade 4.
