Grade 4 · 4.NBT.5 · sheet 6 of 30
Multi-digit multiplication
A printable worksheet, new every day, with a key that names the mistake.
- Eight two-digit by one-digit, four three-digit by one-digit, and eight two-digit by two-digit, worked in columns.
- In two-by-two the key names the two classic slips: a partial product left out, and the second row not shifted over.
Multi-digit multiplication
Show your work. The second row starts one place to the left.
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1
68 ×4
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2
37 ×5
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3
53 ×83
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4
62 ×5
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5
962 ×9
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6
12 ×9
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7
453 ×8
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8
124 ×5
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9
21 ×3
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10
99 ×95
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11
47 ×94
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12
28 ×96
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13
175 ×4
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14
44 ×38
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15
71 ×7
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16
64 ×79
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17
84 ×66
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18
61 ×9
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19
64 ×71
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20
14 ×7
The app does this live.
It picks the next problem from the last answer, skips ahead or doubles back, and animates the teaching instead of handing over a rule. Inside the app the same patterns the key names are caught as your child plays.
How to use the key
Mark the sheet against the key. Beside each answer it lists what the known mistakes would have written. One wrong answer is a slip. The same pattern three times is a rule your child is following, and the guide says what to do about it tonight.
On this sheet the key can tell apart: leaving out a partial product (8 problems), forgetting to shift the second row (8 problems).
Cardinal Math watches for all of these, every day.
Inside the app the same patterns are caught as your child plays, across the whole of K to grade 5, and explained to you in plain words. One price, no ads, no streaks. Coming to iPhone and iPad.
Tell me when it's out