#### Transcript Mid-Chapter Check

```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
Mid-Chapter Check
Find, round to the nearest tenth, if necessary.
1. 10.22 ÷ 14
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
Mid-Chapter Check
Find, round to the nearest tenth, if necessary.
2. 59.84 ÷ 32
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
Mid-Chapter Check
Find, round to the nearest tenth, if necessary.
3. 751.2 ÷ 25
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
Mid-Chapter Check
Find, round to the nearest tenth, if necessary.
4. 6271 ÷ 4
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
Flashcards
Wednesday, Oct 16
Lesson 3.8
Divide Decimals by Decimals
Divide Decimals by Decimals
Objective: To understand how to estimate
and divide decimals by decimals.
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.
Divide Decimals by Decimals
Find 1.71÷ 0.9
Estimate?
Divide Decimals by Decimals
Find 1.71÷ 0.9
Estimate?
2÷1=2
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
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
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
Divide Decimals by Decimals
Find 2.64÷ 0.6
Estimate?
Divide Decimals by Decimals
Find 2.64÷ 0.6
Estimate?
3÷1=3
Divide Decimals by Decimals
Find 2.64÷ 0.6
Step 1 - ?
Divide Decimals by Decimals
Find 2.64÷ 0.6
0.6)2.64
Step 2 - ?
Divide Decimals by Decimals
Find 2.64÷ 0.6
0.6)2.64 = 06.)26.4
Step 3 - ?
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
Divide Decimals by Decimals
Find 54.4 ÷ 1.7
Divide Decimals by Decimals
Find 54.4 ÷ 1.7
Estimate?
Divide Decimals by Decimals
Find 54.4 ÷ 1.7
Estimate?
54 ÷ 2 = 27
Actual quotient?
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
Divide Decimals by Decimals
Find 8.424 ÷ 0.36
Divide Decimals by Decimals
Find 8.424 ÷ 0.36
Estimate?
Divide Decimals by Decimals
Find 8.424 ÷ 0.36
Estimate?
8 ÷ 0.5 = 16
Remember – you can not
divide by 0.
Actual quotient?
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
Divide Decimals by Decimals
Find 0.009 ÷ 0.18
Estimate?
Divide Decimals by Decimals
Find 0.009 ÷ 0.18
Estimate?
Since both numbers are close to zero, the
estimate would be zero.
Actual quotient?
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,
Divide Decimals by Decimals
How many times as much money did Frank make as Erin?
Round to the nearest tenth.
Divide Decimals by Decimals
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
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
```