Let’s solve each row by counting back in ones — that means we go down by 1 each time.
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Row 1:
Given: 18, 17, 16, __, 14, __, 12, 11
After 16 comes
15, then 14. After 14 comes
13, then 12, 11.
→ Missing:
15, 13
---
Row 2:
Given: 20, __, 18, 17, 16, __, 14, __
After 20 is
19, then 18... After 16 is
15, then 14... After 14 is
13.
→ Missing:
19, 15, 13
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Row 3:
Given: 17, 16, __, 14, __, 12, __, 10
After 16 is
15, then 14. After 14 is
13, then 12. After 12 is
11, then 10.
→ Missing:
15, 13, 11
---
Row 4:
Given: 19, 18, __, 16, 15, __, 13, 12
After 18 is
17, then 16... After 15 is
14, then 13, 12.
→ Missing:
17, 14
---
Row 5:
Given: 16, 15, __, 13, __, 11, __, 9
After 15 is
14, then 13. After 13 is
12, then 11. After 11 is
10, then 9.
→ Missing:
14, 12, 10
---
Row 6:
Given: 19, __, 17, 16, __, 14, __, __
After 19 is
18, then 17, 16. After 16 is
15, then 14. After 14 is
13, then
12.
→ Missing:
18, 15, 13, 12
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Final Answer:
1) 15, 13
2) 19, 15, 13
3) 15, 13, 11
4) 17, 14
5) 14, 12, 10
6) 18, 15, 13, 12
Parent Tip: Review the logic above to help your child master the concept of counting backwards from 20 worksheet.
