Let’s solve each problem one by one, step by step.
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Problem 1:
Ellen had 2,080 Legos, but she lost 17 Legos. How many Legos does she have now?
We start with 2,080 and subtract the 17 she lost.
2,080 - 17 = ?
Break it down:
2,080 - 10 = 2,070
2,070 - 7 = 2,063
✔ So, Ellen has
2,063 Legos now.
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Problem 2:
Arthur baked 115 muffins. James baked 12 times as many. How many muffins did James bake?
“12 times as many” means we multiply Arthur’s amount by 12.
115 × 12 = ?
We can break 12 into 10 + 2:
115 × 10 = 1,150
115 × 2 = 230
Add them: 1,150 + 230 = 1,380
✔ James baked
1,380 muffins.
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Problem 3:
There are 14,240 books in a library. They are arranged on shelves that hold 8 books each. How many shelves are in the library?
We need to divide total books by books per shelf.
14,240 ÷ 8 = ?
Let’s do long division or break it down:
8 × 1,000 = 8,000 → subtract from 14,240 → left with 6,240
8 × 700 = 5,600 → subtract → left with 640
8 × 80 = 640 → subtract → 0
So: 1,000 + 700 + 80 = 1,780
✔ There are
1,780 shelves.
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Problem 4:
Willy has 1,850 crayons. Lucy has 739 crayons. How many more crayons does Willy have than Lucy?
Subtract Lucy’s amount from Willy’s.
1,850 - 739 = ?
Break it down:
1,850 - 700 = 1,150
1,150 - 39 = 1,111
(Or: 1,850 - 739 → borrow if needed:
1,850
- 739
= 1,111)
✔ Willy has
1,111 more crayons.
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Problem 5:
Brad has 10,000 balloons. 626 of them are red and the rest are green. How many green balloons does Brad have?
Total minus red = green.
10,000 - 626 = ?
Think: 10,000 - 600 = 9,400
Then 9,400 - 26 = 9,374
✔ Brad has
9,374 green balloons.
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Final Answer:
1. 2,063
2. 1,380
3. 1,780
4. 1,111
5. 9,374
Parent Tip: Review the logic above to help your child master the concept of mixed problems worksheet.
