Cardinal Math

Multi-digit multiplication · sheet 2 of 30

Answer key

The answer, and what a wrong answer means.

The sheet
#ProblemAnswerIf they wrote…
1 98 × 92 9016 1078 forgetting to shift the second row8116 leaving out a partial product
2 633 × 3 1899 no pattern to catch here
3 12 × 38 456 132 forgetting to shift the second row316 leaving out a partial product
4 46 × 23 1058 230 forgetting to shift the second row818 leaving out a partial product
5 47 × 3 141 no pattern to catch here
6 79 × 2 158 no pattern to catch here
7 525 × 5 2625 no pattern to catch here
8 92 × 56 5152 1012 forgetting to shift the second row4512 leaving out a partial product
9 24 × 6 144 no pattern to catch here
10 71 × 44 3124 2804 leaving out a partial product568 forgetting to shift the second row
11 667 × 4 2668 no pattern to catch here
12 89 × 6 534 no pattern to catch here
13 88 × 39 3432 1056 forgetting to shift the second row2472 leaving out a partial product
14 46 × 9 414 no pattern to catch here
15 92 × 9 828 no pattern to catch here
16 81 × 5 405 no pattern to catch here
17 86 × 75 6450 1032 forgetting to shift the second row5630 leaving out a partial product
18 993 × 2 1986 no pattern to catch here
19 53 × 4 212 no pattern to catch here
20 69 × 55 3795 3045 leaving out a partial product690 forgetting to shift the second row

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