Missing factors

Printable missing factors drills for grade 3. Each page has one line telling the student what to do and 30 or 45 numbered problems, with an answer key numbered the same way, so checking takes a minute.

Make a sheet

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Factors 1 to 1030 or 45 problems
Factors 1 to 1230 or 45 problems

New problems every time, a second page if you want one, Letter or A4. Print the sheet, the key or both.

Sample sheet and answer key

Missing factors

Factors 1 to 10 · 30 problems

NameDate

Write the missing factor.

Score / 30Time

1.6×=12
2.1×=7
3.×2=14
4.×4=36
5.×6=36
6.7×=49
7.9×=9
8.5×=5
9.×10=70
10.7×=21
11.4×=4
12.×8=24
13.×10=30
14.10×=100
15.×10=90
16.5×=40
17.8×=8
18.3×=30
19.×6=48
20.×6=24
21.×7=21
22.×2=20
23.×4=8
24.×2=12
25.×10=10
26.1×=4
27.×1=9
28.×7=56
29.×8=64
30.×10=100

Sheet

Missing factors

Factors 1 to 10 · 30 problems

Answer key

Write the missing factor.

Score 30 / 30Time

1.6×2=12
2.1×7=7
3.7×2=14
4.9×4=36
5.6×6=36
6.7×7=49
7.9×1=9
8.5×1=5
9.7×10=70
10.7×3=21
11.4×1=4
12.3×8=24
13.3×10=30
14.10×10=100
15.9×10=90
16.5×8=40
17.8×1=8
18.3×10=30
19.8×6=48
20.4×6=24
21.3×7=21
22.10×2=20
23.2×4=8
24.6×2=12
25.1×10=10
26.1×4=4
27.9×1=9
28.8×7=56
29.8×8=64
30.10×10=100

Answer key

Missing factors

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Sample sheet and answer key

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