Cardinal Math

Multi-digit multiplication · sheet 7 of 30

Answer key

The answer, and what a wrong answer means.

The sheet
#ProblemAnswerIf they wrote…
1 44 × 6 264 no pattern to catch here
2 92 × 94 8648 1196 forgetting to shift the second row8108 leaving out a partial product
3 333 × 4 1332 no pattern to catch here
4 27 × 33 891 162 forgetting to shift the second row621 leaving out a partial product
5 26 × 96 2496 1836 leaving out a partial product390 forgetting to shift the second row
6 83 × 5 415 no pattern to catch here
7 778 × 3 2334 no pattern to catch here
8 25 × 2 50 no pattern to catch here
9 31 × 99 3069 2709 leaving out a partial product558 forgetting to shift the second row
10 38 × 5 190 no pattern to catch here
11 464 × 8 3712 no pattern to catch here
12 723 × 5 3615 no pattern to catch here
13 56 × 8 448 no pattern to catch here
14 33 × 5 165 no pattern to catch here
15 74 × 26 1924 1424 leaving out a partial product592 forgetting to shift the second row
16 68 × 89 6052 1156 forgetting to shift the second row4872 leaving out a partial product
17 47 × 7 329 no pattern to catch here
18 32 × 87 2784 2414 leaving out a partial product480 forgetting to shift the second row
19 47 × 17 799 376 forgetting to shift the second row449 leaving out a partial product
20 56 × 4 224 no pattern to catch here

Reading the wrong answers

One wrong answer is a slip. The same pattern on three or more problems is a rule your child is following, and it has a name and a fix. Problems marked "no pattern to catch" are the plain ones; a child who gets only those right is telling you something too.

Leaving out a partial product 8 of 20 problems

Forgetting to shift the second row 8 of 20 problems