Multiply by multiples of 10

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What is multiplication?

Back

Multiplication is a mathematical operation where a number is added to itself a certain number of times. For example, 4 x 3 means adding 4 three times: 4 + 4 + 4 = 12.

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CCSS.3.OA.A.1

Front

What does it mean to multiply by a multiple of 10?

Back

Multiplying by a multiple of 10 means you are multiplying a number by 10, 20, 30, etc. This makes it easier to calculate because you can just add a zero to the end of the number.

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CCSS.5.NBT.B.7

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Calculate: 4 x 60

Back

240

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CCSS.4.NBT.B.5

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Calculate: 80 x 5

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400

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CCSS.4.NBT.B.5

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Calculate: 20 x 5

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100

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CCSS.4.NBT.B.5

Front

Calculate: 8 x 90

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720

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CCSS.3.NBT.A.3

Front

If you have 9 crates and each crate has 20 boxes, how many boxes do you have in total?

Back

180

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CCSS.3.OA.A.3

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What is the product of 10 x 10?

Back

100

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CCSS.4.NBT.B.5

Front

What is the product of 5 x 20?

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100

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CCSS.3.NBT.A.3

Front

What is the product of 3 x 30?

Back

90

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CCSS.3.NBT.A.3