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Thursday, 1 June 2017

Decimal Fractions

Decimal fractions

Place value practice with tenths

We are learning to use tenths

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
  1. Fill in your worksheet
  2. Then expand your number

1) 34.5 (2) 8.7 (3) 2.1

4) 18.9 (5) 23.8 (6) 1.6

7) 0.5 (8) 0.2 (9) 3.9

10) 15.2 (11) 15 (12) 674

13) 1023 (14) 1045.6 (15) 300.1

16) 89.4 (17) 0.9 (18) 0.3

19) 104.3 (20) 100.5



Question
1000
100
10
1
Expanded number
1.


   30
4
⅕  
34.5
2



     8
1/7  
8.7
3



2
1/1  
2.1
4


10
8
1/9  
18.9
5


20
3
23.8
6



1
1.6
7



0
0.5
8



0
    ½
0.2
9



3
1/9
3.9
10


10
5
½
15.2
11


10
5

15
12

600
70
4

674
13
1000

70
3

1073
14
1000

40
5
1045.6
15

300


1/1
300.1
16


80
9
¼
89.4
17




1/9
9
18



0
0.3
19

100

4
104.3
20

100


100.5



Exercise 2



Question
100
10
1
1/10
Decimal fraction
A
4
     0
3

403
B
0
8
9

89
C
2
3
4
6
234.6
D
3
0
6

306
E





F

7

1
71
G
6



6
H


3
8
0.38
I
8
2
4
5
824.5
J
3

1

301
K
2
3
5
9
235.9


Exercise 3
Underline the tenths in each question

1)  34.6 (2) 78 (3) 345.9

4)  1234.6 (5) 67.9 (6) 0.012

7)  59.345 (8) 12345.8 (9) 456.67

10)  12.89 (11) 0.897 (12) 21.21


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

1)  0. (2) 0.3 (3) 12.0

4) 24.4 (5) 12.6 (6) 168.4

7)  2145.2 (8) 0.9 (9) 23.9



Exercise 6

Take one tenth () from each of these numbers

1) 39.⅕   (2) 32.1/0 (3) 123.⅙   

4) 0.1/88 (5) 45.⅕ (6) 56.1/0

7) 286. 1/1 (8) 39.1/0 (9) 8.1/1

10) 478.1/29

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