Decimal fractions
Place value practice with tenths and hundredths
We are learning to use tenths and hundredths
Example: Fill in your worksheet as shown
Example: 345.6
100
|
10
|
1
|  |
3
|
4
|
5
|
6
|
Expanded number: 300 + 40 + 5 + 6/10
Exercise 1
What to do
- Fill in your worksheet
- Then expand your number
1) 34.5 (2) 8.87 (3) 2.1
4) 18.9 (5) 23.8 (6) 1.6
7) 0.5 (8) 0.23 (9) 3.98
10) 15.2 (11) 15 (12) 674.1
13) 1023 (14) 1045.6 (15) 300.1
16) 89.44 (17) 0.96 (18) 0.35
19) 104.3 (20) 100.5
Question
|
1000
|
100
|
10
|
1
|  |
1/100
|
Expanded number
|
1.
|
3
|
4
|
5
|
30+4+5/10
| |||
2
|
8
|
8
|
7
|
8+8/10+70/100
| |||
3
|
2
|
1
|
2+1/10
| ||||
4
|
1
|
8
|
9
|
10+8+ 9/10
| |||
5
|
2
|
3
|
8
|
20+3+8/10
| |||
6
|
1
|
6
|
1+6/10
| ||||
7
|
0
|
5
|
0+5/10
| ||||
8
|
0
|
2
|
3
|
0+2/10+30/100
| |||
9
|
3
|
9
|
8
|
3+9/10+80/100
| |||
10
|
1
|
5
|
2
|
10+5+2/10
| |||
11
|
1
|
5
|
10+5
| ||||
12
|
6
|
7
|
4
|
1
|
600+7+4+1/10
| ||
13
|
1
|
0
|
2
|
3
|
1000+20+30
| ||
14
|
1
|
0
|
4
|
5
|
6
|
1000+40+5+6/10
| |
15
|
3
|
0
|
0
|
1
|
300+1/10
| ||
16
|
8
|
9
|
4
|
4
|
80+9+4/10+40/100
| ||
17
|
0
|
9
|
6
|
0+9/10+60/100
| |||
18
|
0
|
3
|
5
|
0+3/10+50/100
| |||
19
|
1
|
0
|
4
|
3
|
100+4+3/10
| ||
20
|
1
|
0
|
0
|
5
|
100+5/10
|
Exercise 2
What to do:
Write the expanded numbers as a decimal fraction
Question
|
100
|
10
|
1
|
1/10
|
1/100
|
Decimal fraction
|
A
|
4
|
0
|
3
|
0
|
0
|
403
|
B
|
0
|
8
|
9
|
0
|
3
|
89.03
|
C
|
2
|
3
|
4
|
6
|
0
|
234.6
|
D
|
3
|
0
|
6
|
0
|
5
|
306.05
|
E
|
0
|
0
|
0
|
0
|
0
| |
F
|
0
|
7
|
0
|
1
|
6
|
70.16
|
G
|
6
|
0
|
0
|
0
|
0
|
600
|
H
|
0
|
0
|
3
|
8
|
6
|
3.86
|
I
|
8
|
2
|
4
|
5
|
0
|
824.5
|
J
|
3
|
0
|
1
|
0
|
6
|
301.06
|
K
|
2
|
3
|
5
|
9
|
0
|
235.9
|
Exercise 3
Underline the hundredths in each question
1) 34.64 (2) 78 (3) 345.9
4) 1234.624 (5) 67.9 (6) 0.0122
7) 59.345 (8) 12345.82 (9) 456.6722
10) 12.89 (11) 0.897 (12) 21.2129
Exercise 4
Highlight the digit in the tens place
1) 24 741 (2) 18 932 (3) 78.043
4) 567.15 (5) 4536. 407
Exercise 5
Add one tenth (
) to each of these numbers
) to each of these numbers
1) 0.8 (2) 0.4 (3) 12.1
4) 24.5 (5) 12.7 (6) 168.5
7) 2145.3 (8) 1.0 (9) 24.0
Exercise 6
Add one tenth (1/100) to each of these numbers
1) 0.72 (2) 0.31 (3) 12.04
4) 24.433 (5) 12.632 (6) 18.449
7) 2145.21 (8) 0.91 (9) 23.96
Exercise 7
Take one tenth (
) from each of these numbers
) from each of these numbers
1) 39.5 (2) 32.0 (3) 123.6
4) 0.79 (5) 45.5 (6) 56.0
7) 286. 1 (8) 39.0 (9) 8.1
(10) 478.20
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WALT-Identify and uses tenths and hundredths.
TASK: My task was to try understanding the identify and uses tenths and hundredths. I didn't know what to do or how to work it out but after a few try's I learn how to expand and to decimal fractions.
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