Multiply to Check

Check a quotient and remainder by multiplying and adding.

Warm-up, learn, try it together, practice, then a quick check. About 15 minutes.

What children learn in Level 29

Multiplying undoes dividing, so you can check any division. If 3,276 divided by 12 is 273, then 12 times 273 should be 3,276.
With a remainder, multiply, then add the left over. We said 1,000 divided by 13 is 76 with 12 left over.
13 times 76 is 988. Add 12, and you're back to 1,000. It checks.
One more check: the left over must be smaller than the divisor. If it's not, one more group fits.

Georgia's K-12 Mathematics Standards:

5.NR.2.2 — Fluently divide multi-digit whole numbers (up to 4-digit dividends and 2-digit divisors no greater than 25) to solve practical problems.