Let’s solve each problem step by step using the distributive property. The idea is to break one number into two easier parts (like 10 + 2 or 20 + 5), multiply each part separately, then add the results.
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Problem ①: 12 × 4
We break 12 into 10 + 2.
→ (10 + 2) × 4
= (10 × 4) + (2 × 4)
= 40 + 8
=
48
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Problem ②: 4 × 14
Break 14 into 10 + 4.
→ 4 × (10 + 4)
= (4 × 10) + (4 × 4)
= 40 + 16
=
56
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Problem ③: 3 × 18
Break 18 into 10 + 8.
→ 3 × (10 + 8)
= (3 × 10) + (3 × 8)
= 30 + 24
=
54
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Problem ④: 22 × 8
Break 22 into 20 + 2.
→ (20 + 2) × 8
= (20 × 8) + (2 × 8)
= 160 + 16
=
176
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Problem ⑤: 4 × 25
Break 25 into 20 + 5.
→ 4 × (20 + 5)
= (4 × 20) + (4 × 5)
= 80 + 20
=
100
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Problem ⑥: 18 × 6
Break 18 into 10 + 8.
→ (10 + 8) × 6
= (10 × 6) + (8 × 6)
= 60 + 48
=
108
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Final Answer:
① 48
② 56
③ 54
④ 176
⑤ 100
⑥ 108
Parent Tip: Review the logic above to help your child master the concept of distributive property 3rd grade worksheet.
