Cardinal Math

Multi-digit multiplication · sheet 14 of 30

Answer key

The answer, and what a wrong answer means.

The sheet
#ProblemAnswerIf they wrote…
1 56 × 3 168 no pattern to catch here
2 13 × 3 39 no pattern to catch here
3 779 × 4 3116 no pattern to catch here
4 97 × 95 9215 1358 forgetting to shift the second row8135 leaving out a partial product
5 628 × 2 1256 no pattern to catch here
6 87 × 3 261 no pattern to catch here
7 62 × 6 372 no pattern to catch here
8 479 × 4 1916 no pattern to catch here
9 39 × 88 3432 2472 leaving out a partial product624 forgetting to shift the second row
10 42 × 68 2856 2416 leaving out a partial product588 forgetting to shift the second row
11 61 × 2 122 no pattern to catch here
12 82 × 6 492 no pattern to catch here
13 17 × 43 731 119 forgetting to shift the second row421 leaving out a partial product
14 88 × 82 7216 6416 leaving out a partial product880 forgetting to shift the second row
15 51 × 38 1938 1508 leaving out a partial product561 forgetting to shift the second row
16 76 × 5 380 no pattern to catch here
17 37 × 8 296 no pattern to catch here
18 67 × 64 4288 3628 leaving out a partial product670 forgetting to shift the second row
19 15 × 29 435 165 forgetting to shift the second row245 leaving out a partial product
20 552 × 9 4968 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