Let’s solve each problem one by one, step by step.
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Problem 1:
Alex ate 10 pieces of chocolate. These 10 pieces made up 1/3 of the chocolates he had. How many chocolates did he have?
→ If 10 is 1/3 of the total, then the whole amount (all his chocolates) must be 3 times that.
So:
10 × 3 = 30
✔ Alex had
30 chocolates.
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Problem 2:
Mr Evans has 32 children in his classroom. He had 100 chocolates. How many could he give to each child, and how many would he have leftover?
→ We need to divide 100 chocolates among 32 kids.
Do 100 ÷ 32:
32 × 3 = 96 → that’s less than 100
32 × 4 = 128 → too big!
So each child gets
3 chocolates.
Leftover = 100 - 96 =
4
✔ Each child gets
3, with
4 left over.
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Problem 3:
There were 8 school buses and each bus could hold 70 children. How many children could they fit onto all 8 buses?
→ Multiply number of buses by capacity per bus:
8 × 70 = ?
We can think: 8 × 7 = 56, so 8 × 70 = 560
✔ They can fit
560 children.
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Problem 4:
Peter loved to collect baseball cards. He had 21 cards and gave 1/3 of them away to his best friend. How many cards did he have left?
→ First, find out how many he gave away:
1/3 of 21 = 21 ÷ 3 = 7
Then subtract from original:
21 - 7 = 14
✔ Peter had
14 cards left.
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Final Answer:
1. 30
2. 3 each, 4 leftover
3. 560
4. 14
Parent Tip: Review the logic above to help your child master the concept of 3rd grade multiplication word problems worksheet.