Do Now Divide. 1. 24.5 ÷ 7 2. 50.4 ÷ 6 3. 19.2 ÷ (–2) 4. 128.1 ÷ 21 3.5 8.4 –9.6 Course 2 3-5 Dividing Decimals and Integers by Decimals 6.1 Hwk: p 28.

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Presentation transcript:

Do Now Divide ÷ ÷ ÷ (–2) ÷ –9.6 Course Dividing Decimals and Integers by Decimals 6.1 Hwk: p 28

EQ How do I divide decimals and integers by decimals? Course Dividing Decimals and Integers by Decimals M7N1.c Add, subtract, multiply, and divide positive and negative rational numbers; M7N1.d Solve problems using rational numbers

Divide. Additional Example 1A: Dividing Decimals by Decimals 8.28 ÷ 4.6 ) – 36 8 – ÷ = 82.8 ÷ 46 Course Dividing Decimals and Integers by Decimals

Divide. Additional Example 1B: Dividing Decimals by Decimals ÷ (–1.75) ÷ (–1.75) =1848 ÷ 175 ) – – – ÷ (–1.75) = – The signs are different. Course Dividing Decimals and Integers by Decimals

Check It Out: Example 1A Divide. Insert Lesson Title Here 6.45 ÷ 0.5 ) – 14 – ÷ –4 5 0 = 64.5 ÷ 5 Course Dividing Decimals and Integers by Decimals

Divide ÷ (–2.06) ÷ (–2.06) = 1648 ÷ (206) ) 1, – ÷ (–2.06) = –8 0 Check It Out: Example 1B Course Dividing Decimals and Integers by Decimals

Divide. Additional Example 2A: Dividing Integers by Decimals 4 ÷ ÷ 1.25 = 400 ÷ 125 ) – – Estimate 4 ÷ 1 = 4. 2 Course Dividing Decimals and Integers by Decimals

Divide. Additional Example 2B: Dividing Integers by Decimals –24 ÷ (–2.5) –24.0 ÷ (–2.5) = –240 ÷ (–25) ) – – Estimate –24 ÷ (–3) = 8 Course Dividing Decimals and Integers by Decimals

Divide. Check It Out: Example 2A 6 ÷ ÷ 1.25 = 600 ÷ 125 ) – – Estimate 6 ÷ 1 = 6. 8 Course Dividing Decimals and Integers by Decimals

Divide. Check It Out: Example 2B –22 ÷ (–2.5) –22.0 ÷ (–2.5) = –220 ÷ (–25) ) – – Estimate –21 ÷ (–3) = 7 Course Dividing Decimals and Integers by Decimals

Eric paid $ to rent a car. The fee to rent the car was $32.75 per day. For how long did Eric rent the car? Additional Example 3: Transportation Application ÷ =22,925 ÷ 3,275 ) 3,275 22,975 7 –22,975 0 Eric rented the car for 7 days. Course Dividing Decimals and Integers by Decimals

Check It Out: Example 3 Jace took a trip in which he drove 350 miles. During the trip his truck used 12.5 gallons of gas. What was his truck’s gas mileage? Insert Lesson Title Here ÷ 12.5 = 3500 ÷ 125 ) – – Jace’s truck’s gas mileage was 28 miles per gallon. To calculate miles per gallon, divide the number of miles driven by the number of gallons of gas used. Helpful Hint Course Dividing Decimals and Integers by Decimals

You Try Divide. Estimate to check whether each answer is reasonable ÷ –9.72 ÷ ÷ ÷ Jordan used gallons of gas to drive his van miles. How many miles did Jordan get per gallon? –3.6 1,995 Insert Lesson Title Here Course Dividing Decimals and Integers by Decimals

You have two choices A: start on your homework quietly B: open textbook to page 172 and start working.