Dividing Decimals by Decimal Divisors

Is our divisor (0.2) a whole number?

• No. It has a number in the tenths place, so it is not a whole number.

• Yes. The decimal is at the end, so it is a whole number. 

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CCSS.5.NBT.A.2

What did he just say 🧐? Moving the decimal to the right is the same as MULTIPLYING BY A POWER OF...

• 1

• 2

• 10

• 3

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CCSS.5.NBT.A.2

I need to also multiply my dividend by 10.  This means it will change to what number?

• 7.12

• 0.712

• 712.0

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CCSS.5.NBT.A.2

What is one way you can CHECK YOUR WORK to make sure that your long division is correct?

• There is no way. You just have to trust you did it right. 

• Add 356 + 2 and see if you get 712

• Subtract 356 - 712 and see if you get 2

• Multiply 356 x 2 and see if you get 712

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CCSS.5.NBT.B.6

CCSS.6.NS.B.2

What will be your new division problem ?

• 0.496 ÷ 0.04

• 4 ÷ 496

• 4960 ÷ 4

• 496.0 ÷ 4

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CCSS.5.NBT.B.7

Which step ALWAYS comes after you bring down the next digit?

• Repeat all the steps, starting with Division

• Subtract

• Multiply

• Check the quotient

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CCSS.7.EE.B.3

For number 3, which number is the divisor?

• 1.5

• 3.15

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CCSS.5.NBT.B.7

How many times will you move the decimal to the right in 1.5 to make it a whole number?

• 1 time, multiply by one power of 10

• 2 times, multiply by two powers of 10

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CCSS.5.NBT.A.2

What will be your new dividend?

• 31.5

• 315

• 3,150

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CCSS.5.NBT.B.7

True or False:

If there is a decimal ONLY in the dividend, it must be brought straight up to the quotient between the same place values.

• True

• False

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CCSS.5.NBT.B.7