Multiplication With Numbers Strips (Factors of 18, 20, & 21)

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Write the missing numbers in each of the number strips and also complete the matching multiplication sentence.

111111111111111111
222222222
333333
666
99
18
18 x 1 = 18
9 x 2 = 18
6 x 3 = 18
3 x 6 = 18
2 x 9 = 18
1 x 18 = 18
11111111111111111111
2222222222
44444
5555
1010
20
20 x 1 = 20
10 x 2 = 20
5 x 4 = 20
4 x 5 = 20
2 x 10 = 20
1 x 20 = 20
111111111111111111111
3333333
777
21
21 x 1 = 21
7 x 3 = 21
3 x 7 = 21
1 x 21 = 21

Factors of : 4,6,&8 | 9,10&12 | 14,15&16 | 18,20,&21 | 22,24,&25 | 28&30 | 32&36

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Related Resources

The various resources listed below are aligned to the same standard, (3OA01) taken from the CCSM (Common Core Standards For Mathematics) as the Multiplication Worksheet shown above.

Interpret products of whole numbers, e.g., interpret 5 x 7 as the total number of objects in 5 groups of 7 objects each. For example, describe a context in which a total number of objects can be expressed as 5 x 7.

Example/Guidance

Worksheet

Similar to the above listing, the resources below are aligned to related standards in the Common Core For Mathematics that together support the following learning outcome:

Represent and solve problems involving multiplication and division