Let’s solve each box one by one. We’ll look at the “in” and “out” numbers to find the rule — like what you do to the “in” number to get the “out” number.
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Problem ①
Given:
- in = 50 → out = 10
- in = 40 → out = 8
Check:
50 ÷ ? = 10 → 50 ÷ 5 = 10
✔
40 ÷ ? = 8 → 40 ÷ 5 = 8
✔
So the rule is
÷ 5
Now fill in the rest:
- in = 35 → 35 ÷ 5 =
7
- in = 25 → 25 ÷ 5 =
5
✔ Rule: ÷ 5
✔ Out values: 7, 5
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Problem ②
Given:
- in = 63 → out = 7
- in = 81 → out = 9
Check:
63 ÷ ? = 7 → 63 ÷ 9 = 7
✔
81 ÷ ? = 9 → 81 ÷ 9 = 9
✔
Rule:
÷ 9
Fill in:
- in = 90 → 90 ÷ 9 =
10
- in = 54 → 54 ÷ 9 =
6
✔ Rule: ÷ 9
✔ Out values: 10, 6
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Problem ③
Given:
- in = 27 → out = 9
- in = 18 → out = 6
Check:
27 ÷ ? = 9 → 27 ÷ 3 = 9
✔
18 ÷ ? = 6 → 18 ÷ 3 = 6
✔
Rule:
÷ 3
Fill in:
- in = 21 → 21 ÷ 3 =
7
- in = 3 → 3 ÷ 3 =
1
✔ Rule: ÷ 3
✔ Out values: 7, 1
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Problem ④
Given:
- in = 2 → out = 6
- in = 4 → out = 12
Check:
2 × ? = 6 → 2 × 3 = 6
✔
4 × ? = 12 → 4 × 3 = 12
✔
Rule:
× 3
Fill in:
- in = 8 → 8 × 3 =
24
- in = 6 → 6 × 3 =
18
✔ Rule: × 3
✔ Out values: 24, 18
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Problem ⑤
Given:
- in = 54 → out = 9
- in = 36 → out = 6
Check:
54 ÷ ? = 9 → 54 ÷ 6 = 9
✔
36 ÷ ? = 6 → 36 ÷ 6 = 6
✔
Rule:
÷ 6
Fill in:
- in = 48 → 48 ÷ 6 =
8
- in = 18 → 18 ÷ 6 =
3
✔ Rule: ÷ 6
✔ Out values: 8, 3
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Problem ⑥
Given:
- in = 3 → out = 9
- in = 2 → out = 6
Check:
3 × ? = 9 → 3 × 3 = 9
✔
2 × ? = 6 → 2 × 3 = 6
✔
Rule:
× 3
Fill in:
- in = 12 → 12 × 3 =
36
- in = 9 → 9 × 3 =
27
✔ Rule: × 3
✔ Out values: 36, 27
---
Problem ⑦
Given:
- in = 4 → out = 16
- in = 6 → out = 24
Check:
4 × ? = 16 → 4 × 4 = 16
✔
6 × ? = 24 → 6 × 4 = 24
✔
Rule:
× 4
Fill in:
- in = 10 → 10 × 4 =
40
- in = 9 → 9 × 4 =
36
✔ Rule: × 4
✔ Out values: 40, 36
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Final Answer:
① Rule: ÷ 5; Out: 7, 5
② Rule: ÷ 9; Out: 10, 6
③ Rule: ÷ 3; Out: 7, 1
④ Rule: × 3; Out: 24, 18
⑤ Rule: ÷ 6; Out: 8, 3
⑥ Rule: × 3; Out: 36, 27
⑦ Rule: × 4; Out: 40, 36
Parent Tip: Review the logic above to help your child master the concept of division patterns 3rd grade.
