This document provides instructions and examples for dividing decimals. It explains that when dividing a decimal by a whole number, the decimal point is placed in the quotient directly above the decimal point in the dividend. It also explains that when dividing decimals, the decimal point in the divisor is moved to the right until the end of its digits, and the decimal point in the dividend is moved the same number of places. This is demonstrated through examples of dividing decimals by whole numbers and decimals.

1. Dividing
Decimals
Lesson 1-9

2. Remember the parts of a
division problem:
quotient
9
5 45 dividend
divisor

3. Dividing a Decimal by a Whole
Number
• Place the decimal point in the quotient
directly above the decimal point in the
dividend.
• Divide as you normally would (DMSCB)

4. Example
2. 5 D
5 12.5 M
10 S
25
25 C
0 B

5. 11. 28
Example 2
9 101.52
9
11
9
25
18
72
72

6. Dividing a Decimal by a
Decimal
• Move the decimal point in the divisor to the
right, until you get to the end of the digits.
• Count how many places you moved that
decimal.
• Move the decimal point in the dividend the
same number of places to the right that
you moved the decimal point in the divisor.

7. Example
0.3 6.72
one space
03 67.2 New problem

8. 22. 4 D
3 67.2 M
6 S
07
6 C
12 B
12

9. Example 2
3.2 2.24
.7 32
x5
32
x8
32 22.4 160 256
22 4 32
0 x7
224

10. Example 3
0.38 13.3
The decimal must be When we move this one 2
moved 2 spaces to the spaces, we find that we
right. need to add a space. What
will we fill it with?
Answer: Fill it in
with a 0. 13.3
becomes 1330
SO, our problem becomes 038 into 1330. 038 is the
same as 38.

11. 35 38 38
38 1330 x5 x4
114 190 152
38
190 x3
190 114
0

12. Example 4
2.48 1.3392
248 133.92

13. 248 248
x5 x6
.5 4 1240 1488
248 133.92
124 0 248
x4
9 92 992
9 92
0