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Do Now

Do Now. Estimate each quotient. 1.) 53.4 ÷ 6.15 2.) 312.4 ÷ 2.88 Multiply 3.) 2.4 × 5.7 Divide. Round to the nearest tenth. 4 . ) 39.39 ÷ 3 . 9. 100. 13.68. 13.1. 9 /20/2013 1-2 E Divide Decimals by Decimals.

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Do Now

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  1. Do Now Estimate each quotient. 1.) 53.4 ÷ 6.15 2.) 312.4 ÷ 2.88 Multiply 3.) 2.4 × 5.7 Divide. Round to the nearest tenth. 4.) 39.39 ÷ 3 9 100 13.68 13.1

  2. 9/20/2013 1-2 E Divide Decimals by Decimals

  3. To divide a decimal by a decimal, make the divisor a whole number. • The amount of places you move the decimal in the divisor move the SAME AMOUNT of places in the dividend

  4. Move the decimal point so that the divisor is a whole number. Move the same amount of decimal spots in the dividend. Example 1 Find 5.94  0.2. 2 9 . 7 Place the decimal point. – 4 Divide as with whole numbers. 1 9 – 1 8 1 4 – 14 0

  5. Check by multiplying the quotient and divisor. If correct product will match dividend.

  6. Example 2 Find 8.1 ÷ 0.054. 5 0 1 – 54 27 0 Write a zero in the ones place of the quotient because 0 ÷ 54 = 0. – 270 0 0 Answer: So, 8.1 ÷ 0.054 = 150.

  7. Example 3 Find 0.052  1.3. 0 0 . 4 Place the decimal point. – 0 0 5 Move the decimal place to make the divisor a whole number. – 0 0 5 2 – 52 0 Answer: So, 0.052 ÷ 1.3 is 0.04.

  8. Example 4 Francisco made $357.25 last week. Erin made $185.30. How many times as much money did Francisco make as Erin? Round to the nearest tenth. Find 357.25 ÷ 185.3. . 9 1 2 0 – 1853 1719 5 – 16677 518 0 – 3706 1474 To the nearest tenth, 357.25 ÷ 185.30 = 1.9. So Francisco made about 1.9 times as much as Erin.

  9. Exit Ticket

  10. 19 1.) 3.8 ÷ 0.2 2.) 9.3 ÷ 0.6 3.) A truck traveled 93.66 miles on 4.2 gallons of gas. How many miles did the truck travel per gallon of gas? 15.5 22.3 mpg

  11. Homework • Pg. 58 #1-32 Evens • QUIZ CORRECTIONS ARE DUE ON MONDAY!!!!

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