.

1.  First let’s do a little review……

2.  Remember: Numbers to the right have (ths) at
the end, and numbers to the left have (s) at the
end.

3.  Lets name a few….
 What is the place value
of 32,451?
 What is the place value
of 5,925,362?
 What is the place value
of 1,783,514?
 Ten thousands place
 One millions place
 One hundred thousands

4.  Now lets go to the other
side of the decimal…
 What is the place value
of 1.03?
 What is the place value
of 14.629?
 What is the place value
of 293.857?
 Hundredths place
 Tenths place
 Thousandths place

5.  When you add decimals together make sure to
line them up!
 31.007 + 0.019
31.007
0.019
31.026
 Remember to add from the right!

6.  Remember:

1
10
= 0.1
1
100
= 0.01
1
1000
= 0.001
 Write the answers as decimal numbers:

7
100
+
2
100
= 0.09
 Check out page 22 and complete all the
problems!

7. 1.
7
100
+
2
100
=
2.
3
10
+
6
10
=
3.
11
100
+
21
100
=
4.
1
10
+
2
10
=
5.
254
1000
+
31
100
=
6.
8
100
+
5
10
=
ퟗ
ퟏퟎퟎ
ퟗ
ퟏퟎ
ퟑퟐ
ퟏퟎퟎ
ퟑ
ퟏퟎ
ퟓퟔퟒ
ퟏퟎퟎퟎ
ퟓퟖ
ퟏퟎퟎ

8. 7.
45
100
+
13
100
=
8.
103
1000
+
4
10
=
9.
32
100
+
6
10
=
10.
12
1000
+
3
10
=
ퟓퟖ
ퟏퟎퟎ
ퟓퟎퟑ
ퟏퟎퟎퟎ
ퟗퟐ
ퟏퟎퟎ
ퟑퟏퟐ
ퟏퟎퟎퟎ

9. 1. 0.75
+ 0.34
1.09
2. 0.23
+ 0.65
0.88
3. 0.48
+ 0.55
1.03
4. 0.47
+ 0.64
1.11
5. 0.37
+ 0.54
0.91
6. 0.21
+ 0.72
0.93

10. 1. 64.75
+ 56.61
121.35
2. 33.74
+ 17.65
51.40
3. 23.48
+ 14.66
38.14
4. 123.45
+ 75.64
199.09
5. 82.37
+ 123.52
205.89
6. 11.21
+ 22.12
33.33

11. 1. 4.63 + 8.563 =
2. 7.024 + 15.67=
3. 3.32+11.09=
4. 9.005+2.146=
5. 32.07+1.95=
13.193
22.694
14.41
11.151
34.02

12. 6. 22.681 + 0.94 =
7. 62.36 + 30.52=
8. 1.004+0.997=
9. 2.303+1.797=
10. 8.225+16.65=
23.621
92.87
2.001
4.1
24.875

13.  Scooter Quest finding the place value
http://www.sheppardsoftware.com/mathgam
es/decimals/scooterQuestDecimal.htm