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5 Minute Check Estimate and divide .Round to the nearest tenth, if necessary ÷ ÷ ÷ ÷ 4

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5 Minute Check Estimate and divide .Round to the nearest tenth, if necessary ÷ 14

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5 Minute Check Estimate and divide .Round to the nearest tenth, if necessary ÷ 14 ≈ = )

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5 Minute Check Estimate and divide .Round to the nearest tenth, if necessary ÷ 32

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5 Minute Check Estimate and divide .Round to the nearest tenth, if necessary ÷ 32 ≈ = )

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5 Minute Check Estimate and divide .Round to the nearest tenth, if necessary ÷ 25

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5 Minute Check Estimate and divide .Round to the nearest tenth, if necessary ÷ 25 ≈ = 30 25)

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5 Minute Check Estimate and divide .Round to the nearest tenth, if necessary ÷ 4

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5 Minute Check Estimate and divide .Round to the nearest tenth, if necessary. ÷ 4 ≈ 1500 = 4) -4 22 -20 27 -24 31 -28 30 20

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**Lesson 6.3.8 Divide Decimals by Decimals**

Monday, Sept 29 Lesson Divide Decimals by Decimals

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**Divide Decimals by Decimals**

Objective: To understand how to divide decimals by decimals.

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**Divide Decimals by Decimals**

When dividing a decimal by a decimal, change the divisor to a whole number. To do this, move the decimal in both the divisor and dividend to the right. Then divide as before.

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**Divide Decimals by Decimals**

Find 1.71÷ 0.9

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**Divide Decimals by Decimals**

Find 1.71÷ 0.9 Divide a Decimal by a Decimal. Step 1 – Place the numbers in the dividing bracket.

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**Divide Decimals by Decimals**

Find 1.71÷ 0.9 Divide a Decimal by a Decimal. Step 1 – Place the numbers in the dividing bracket. 0.9)1.71

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**Divide Decimals by Decimals**

Find 1.71÷ 0.9 Divide a Decimal by a Decimal. Step 2 – Move the decimal point to the right in both numbers until the divisor is a whole number. 0.9)1.71

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**Divide Decimals by Decimals**

Find 1.71÷ 0.9 Divide a Decimal by a Decimal. Step 2 – Move the decimal point to the right in both numbers until the divisor is a whole number. 09.)17.1

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**Divide Decimals by Decimals**

Find 1.71÷ 0.9 = To Divide a decimal by a decimal Step 3 – Divide as before. You can drop the decimal point and zero in front of the divisor. 9 )17.1

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**Divide Decimals by Decimals**

Find 1.71÷ 0.9 = 1.9 To Divide a decimal by a decimal Step 3 – Divide as before. You can drop decimal point and the zero in front of the divisor )

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**Divide Decimals by Decimals**

Find 2.64÷ 0.6 Step 1 - ?

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**Divide Decimals by Decimals**

Find 2.64÷ )2.64 Step 2 - ?

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**Divide Decimals by Decimals**

Find 2.64÷ )2.64 = 06.)26.4 Step 3 - ?

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**Divide Decimals by Decimals**

Find 2.64÷ 0.6 = )2.64 = 06.) , 12, 18, 24, 30, 36, 42, 48, 54, 60

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**Divide Decimals by Decimals**

Find ÷ 1.7 Do this on your own

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**Divide Decimals by Decimals**

Find 54.4 ÷ 1.7 = )54.4 = 17)

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**Divide Decimals by Decimals**

Find ÷ 0.36 Do this on your own

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**Divide Decimals by Decimals**

Find ÷ 0.36 = )8.424 = 36)

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**Divide Decimals by Decimals**

Find 52 ÷ 0.4 Do this on your own.

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**Divide Decimals by Decimals**

Find 52 ÷ 0.4 = )52 = 4)

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**Divide Decimals by Decimals**

Find ÷ 0.18 Do this on your own.

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**Divide Decimals by Decimals**

Find ÷ 0.18 = )0.009 = 18)

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**Divide Decimals by Decimals**

Find 11.2 ÷ 0.07 Do this on your own.

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**Divide Decimals by Decimals**

Find 11.2 ÷ 0.07 = )11.2 = 7)

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**Divide Decimals by Decimals**

The average person’s stride length (the distance covered by one step) is about 2.5 ft long. How many steps would the average person take to travel 50 ft? Do this on your own.

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**Divide Decimals by Decimals**

The average person’s stride length (the distance covered by one step) is about 2.5 ft long. How many steps would the average person take to travel 50 ft? 20 steps )50 = 25)

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**Divide Decimals by Decimals**

Frank made $ last week. Erin made $51.20 last week. How many times more was Frank’s paycheck as Erin’s? Round to the nearest tenth. (Do this on your own)

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**Divide Decimals by Decimals**

Frank made $ last week. Erin made $51.20 last week. How many times more was Frank’s paycheck as Erin’s? Round to the nearest tenth. Take out the ugly numbers and substitute friendly numbers. What if Frank made $100 and Erin made $50. How many more times was Frank’s paycheck? What operation did you use to solve?

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**Divide Decimals by Decimals**

Frank made $ last week. Erin made $51.20 last week. How many times more was Frank’s paycheck as Erin’s? Round to the nearest tenth. 1.9 as much )98.20 = 5120)

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**Divide Decimals by Decimals**

Alaska has a coastline of about 6.64 thousand miles. Florida has a coastline of about 1.35 thousand miles. How many times more coastline does Alaska have than Florida? Round to the nearest tenth, if necessary. Do this on your own.

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**Divide Decimals by Decimals**

Alaska has a coastline of about 6.64 thousand miles. Florida has a coastline of about 1.35 thousand miles. How many times more coastline does Alaska have than Florida? Round to the nearest tenth, if necessary. Take out the ugly numbers and substitute friendly numbers. What if Alaska’s coastline was 7 thousand miles and Florida’s coastline was 1 thousand miles? How many more times is Alaska than Florida? What operation did you use to solve?

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**Divide Decimals by Decimals**

Alaska has a coastline of about 6.64 thousand miles. Florida has a coastline of about 1.35 thousand miles. How many times more coastline does Alaska have than Florida? Round to the nearest tenth, if necessary times 1.35)6.64 = 135)664.00 -540 1240 1215 250

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**Divide Decimals by Decimals**

Identify which expression does not belong. Explain. 49 ÷ ÷ ÷ ÷ 0.07

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**Divide Decimals by Decimals**

Identify which expression does not belong. Explain. 49 ÷ 7 = ÷ 7 = ÷ 0.7 = ÷ 0.07 = 0.7

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**Divide Decimals by Decimals**

Homework Practice Due Tuesday, Sept 30 Must show all work. Chapter 6.3 Test -Wednesday, Oct 1 Accum Rev 3 due by Oct 1

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