Transcript Dividing Decimals by Whole Numbers

Dividing Decimals by
Whole Numbers
Mrs. Sherwood
Today we will…
Divide a decimal by a
whole number.
2) Show a remainder as a
decimal.
3) Round a decimal to the
nearest tenth.
1)
Step 1
.
4 26.4
Place the decimal
point in the
quotient above the
decimal point in
the dividend.
Step 2
6.6
4 26.4
-24
24
- 24
0
Divide as with
whole numbers.
Step 3
6.6
X 4
26.4
Check your answer.
Multiply the
quotient by the
divisor.
Your answer should
be the dividend.
Now try these two.
42.8
2.61
2 85.6
5 13.05
How did you do?
Dividing Whole Numbers
with a Decimal Quotient
6
20 130
-120
10
Step 1: Think:
Instead of leaving
a remainder, add
zeros to the
dividend and
continue to work
the problem until
your remainder is
zero.
Showing the Remainder as
a Decimal.
6 .5
20 130.0
-120
100
-100
Step 2: Place the
decimal point in
the quotient above
the decimal point
in the dividend.
Add a zero to the
dividend.
Continue dividing.
Now you try.
4 37
8 12.6
Hint:You may need to add more than one zero!
Check your answers.
9.25
4 37.00
-36
10
-8
20
-20
1.575
8 12.600
-8
46
-40
60
-56
40
-40
Let’s try rounding to the
nearest 10th.
.925
1.
.9
3.467
3.5
26.45
26.5
4.01
4
325.23
325.2
2.
3.
4.
Look at the number to
the right of the
number in the 10ths
place.
If it is 0, 1, 2, 3, or 4,
round down.
If it is 5, 6, 7, 8, or 9,
round up.
.925 rounds to .9
Great Job!