Slide 1

Mid-Chapter Check Find, round to the nearest tenth, if necessary. 1. 10.22 14 2. 59.84 32 3. 751.2 25 4. 6271 4

Slide 2

Mid-Chapter Check Find, round to the nearest tenth, if necessary. 1. 10.22 14

Slide 3

Mid-Chapter Check Find, round to the nearest tenth, if necessary. 1. 10.22 14 = 0.7 00.73 14)10.22 -98 42 -42 00 14, 28, 42, 56, 70, 84, 98

Slide 4

Mid-Chapter Check Find, round to the nearest tenth, if necessary. 2. 59.84 32

Slide 5

Mid-Chapter Check Find, round to the nearest tenth, if necessary. 2. 59.84 32 = 1.9 01.87 32)59.84 -32 278 -256 224 32, 64, 96, 128, 160, 192, 224, 256

Slide 6

Mid-Chapter Check Find, round to the nearest tenth, if necessary. 3. 751.2 25

Slide 7

Mid-Chapter Check Find, round to the nearest tenth, if necessary. 3. 751.2 25 = 30.0 030.04 25)751.20 -75 0120 25, 50, 75, 100, 125, 150, 175, 200, 225

Slide 8

Mid-Chapter Check Find, round to the nearest tenth, if necessary. 4. 6271 4

Slide 9

Mid-Chapter Check Find, round to the nearest tenth, if necessary. 4. 6271 4 = 1567.8 1567.75 4)6271.0 -4 22 -20 27 -24 31 -28 30 -28 20 4,8,12,16,20,24,28,32,36,40,44,48,52,56,60

Slide 10

Flashcards

Slide 11

Wednesday, Oct 16 Lesson 3.8 Divide Decimals by Decimals

Slide 12

Objective: To understand how to estimate and divide decimals by decimals.

Slide 13

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.

Slide 14

Divide Decimals by Decimals Find 1.71 0.9 Estimate?

Slide 15

Divide Decimals by Decimals Find 1.71 0.9 Estimate? 2 1 = 2

Slide 16

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

Slide 17

Divide Decimals by Decimals Find 1.71 0.9 To Divide a decimal by a decimal Step 2 Move the decimal point to the right in both numbers so the divisor is a whole number. 09.)17.1

Slide 18

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. 1.9 9 )17.1 -9 81 -81 00

Slide 19

Divide Decimals by Decimals Find 2.64 0.6 Estimate?

Slide 20

Divide Decimals by Decimals Find 2.64 0.6 Estimate? 3 1 = 3

Slide 21

Divide Decimals by Decimals Find 2.64 0.6 Step 1 - ?

Slide 22

Divide Decimals by Decimals Find 2.64 0.6 0.6)2.64 Step 2 - ?

Slide 23

Divide Decimals by Decimals Find 2.64 0.6 0.6)2.64 = 06.)26.4 Step 3 - ?

Slide 24

Divide Decimals by Decimals Find 2.64 0.6 = 4.4 4.4 0.6)2.64 = 06.)26.4 -24 024 -24 0 6, 12, 18, 24, 30, 36, 42, 48, 54, 60

Slide 25

Divide Decimals by Decimals Find 54.4 1.7 (Do this on your own)

Slide 26

Divide Decimals by Decimals Find 54.4 1.7 Estimate?

Slide 27

Divide Decimals by Decimals Find 54.4 1.7 Estimate? 54 2 = 27 Actual quotient?

Slide 28

Divide Decimals by Decimals Find 54.4 1.7 = 32 32 1.7)54.4 = 17)544 -51 34 -34 0 17,34,51,68,85,102

Slide 29

Divide Decimals by Decimals Find 8.424 0.36 (Do this on your own)

Slide 30

Divide Decimals by Decimals Find 8.424 0.36 Estimate?

Slide 31

Divide Decimals by Decimals Find 8.424 0.36 Estimate? Remember you can not 8 0.5 = 16 divide by 0. Actual quotient?

Slide 32

Divide Decimals by Decimals Find 8.424 0.36 = 23.4 23.4 0.36)8.424 = 36)842.4 -72 122 -108 144 -144 000 36, 72, 108, 144, 180, 216, 252

Slide 33

Divide Decimals by Decimals Find 0.009 0.18 Estimate?

Slide 34

Divide Decimals by Decimals Find 0.009 0.18 Estimate? Since both numbers are close to zero, the estimate would be zero. Actual quotient?

Slide 35

Divide Decimals by Decimals Find 0.009 0.18 = 0.05 000.05 0.18)0.009 = 18)000.90 -90 00 18,36, 54,72, 90, 108, 126,144,

Slide 36

Divide Decimals by Decimals Frank made $ 98.20 last week. Erin made $51.20 last week. How many times as much money did Frank make as Erin? Round to the nearest tenth. (Do this on your own)

Slide 37

Divide Decimals by Decimals Frank made $ 98.20 last week. Erin made $51.20 last week. How many times as much money did Frank make as Erin? Round to the nearest tenth. 1.9 as much 0001.91 51.20)98.20 = 5120)9820.00 -5120 47000 -46080 9200

Slide 38

Divide Decimals by Decimals Agenda Notes Homework Homework Practice 3-8 Due Thursday, Oct 17 Must show all work. Chapter 3 Test Friday, Oct 18 Help session Thursday, Oct 17 2:15-3PM