Mid-Chapter Check

Tuesday, Oct 30

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

2. 59.84 32

3. 751.2 25

4. 6271 4

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

Mid-Chapter CheckFind, round to the nearest tenth, if necessary.1. 10.22 14 = 0.7 00.7314)10.22 -98 42 -42 00

14, 28, 42, 56, 70, 84, 98Mid-Chapter CheckFind, round to the nearest tenth, if necessary.2. 59.84 32

Mid-Chapter CheckFind, round to the nearest tenth, if necessary.2. 59.84 32 = 1.9 01.8732)59.84 -32 278 -256 224

32, 64, 96, 128, 160, 192, 224, 256Mid-Chapter CheckFind, round to the nearest tenth, if necessary.3. 751.2 25

Mid-Chapter CheckFind, 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

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

Mid-Chapter CheckFind, 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 -28 204,8,12,16,20,24,28,32,36,40,44,48,52,56,60 FlashcardsWednesday, Oct 16Lesson 3.8

Divide Decimals by DecimalsDivide Decimals by DecimalsObjective: To understand how to estimate and divide decimals by decimals.

Divide Decimals by DecimalsWhen 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. Divide Decimals by DecimalsFind 1.71 0.9

Estimate?

Divide Decimals by DecimalsFind 1.71 0.9

Estimate?

2 1 = 2

Divide Decimals by DecimalsFind 1.71 0.9Divide a decimal by a decimal.Step 1 Place the numbers in the dividing bracket.

0.9)1.71

Divide Decimals by DecimalsFind 1.71 0.9To Divide a decimal by a decimalStep 2 Move the decimal point to the right in both numbers so the divisor is a whole number.

09.)17.1

Divide Decimals by DecimalsFind 1.71 0.9 = 1.9To Divide a decimal by a decimalStep 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


Estimate?


Estimate?

3 1 = 3


Step 1 - ?

Divide Decimals by DecimalsFind 2.64 0.6 0.6)2.64

Step 2 - ?

Divide Decimals by DecimalsFind 2.64 0.6 0.6)2.64 = 06.)26.4

Step 3 - ?

Divide Decimals by DecimalsFind 2.64 0.6 = 4.4 4.40.6)2.64 = 06.)26.4 -24 024 -24 0

6, 12, 18, 24, 30, 36, 42, 48, 54, 60


(Do this on your own)


Estimate?


Estimate?

54 2 = 27

Actual quotient?

Divide Decimals by DecimalsFind 54.4 1.7 = 32 321.7)54.4 = 17)544 -51 34 -34 017,34,51,68,85,102




Estimate?


Estimate? Remember you can not8 0.5 = 16 divide by 0.

Actual quotient?

Divide Decimals by DecimalsFind 8.424 0.36 = 23.4 23.4 0.36)8.424 = 36)842.4 -72 122 -108 144 -144 00036, 72, 108, 144, 180, 216, 252


Estimate?


Estimate?

Since both numbers are close to zero, the estimate would be zero.

Actual quotient?

Divide Decimals by DecimalsFind 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,

Divide Decimals by DecimalsFrank 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.


Divide Decimals by DecimalsFrank 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 0001.9151.20)98.20 = 5120)9820.00 -5120 47000 -46080 9200

Divide Decimals by DecimalsAgenda NotesHomework Homework Practice 3-8Due Thursday, Oct 17Must show all work.

Chapter 3 Test Friday, Oct 18Help session Thursday, Oct 17 2:15-3PM

Mid-Chapter Check

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