Multiply by Multiples of 10

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What is the result of multiplying any number by 10?

Back

The result is that the number is shifted one place to the left in the decimal system, effectively adding a zero to the end of the number.

Tags

CCSS.5.NBT.A.2

Front

How do you multiply a number by a multiple of 10, such as 20 or 30?

Back

To multiply by a multiple of 10, first multiply the number by the non-zero part (e.g., 2 for 20) and then add the appropriate number of zeros based on the multiple of 10.

Tags

CCSS.4.NBT.B.5

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What is the product of 50 and 8?

Back

The product of 50 and 8 is 400.

Tags

CCSS.4.NBT.B.5

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What is the product of 4 and 20?

Back

The product of 4 and 20 is 80.

Tags

CCSS.4.NBT.B.5

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What is the product of 40 and 7?

Back

The product of 40 and 7 is 280.

Tags

CCSS.4.NBT.B.5

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What is the product of 3 and 50?

Back

The product of 3 and 50 is 150.

Tags

CCSS.4.NBT.B.5

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What is the product of 2 and 10?

Back

The product of 2 and 10 is 20.

Tags

CCSS.3.OA.A.1

Front

What is the general rule for multiplying by 10, 100, or 1000?

Back

The general rule is to move the decimal point to the right by one place for each zero in the multiplier.

Tags

CCSS.5.NBT.A.2

Front

How can you check your multiplication results?

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You can check your multiplication results by using the inverse operation, which is division, or by estimating the product.

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CCSS.4.NBT.B.6

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What is the importance of understanding multiplication with multiples of 10 in real-life applications?

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Understanding multiplication with multiples of 10 is important for quick calculations in budgeting, shopping, and measuring.

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CCSS.5.NBT.B.7