A librarian stacks 243 books equally onto 8 shelves. How many books are on each shelf, and how many books cannot be shelved?
Show Worked Solution
Worked Solution
Step 1: Divide 243 by 8.
Estimate: 8 × 30 = 240.
Step 2: 30 × 8 = 240.
Step 3: Remainder = 243 − 240 = 3.
Answer: 30 books on each shelf, 3 books remaining.
Check: 30 × 8 + 3 = 240 + 3 = 243 ✓
Correct answer: 30 books on each shelf, 3 books remaining
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