Chapter 7 Decimals Worksheet - New Century Maths Page 7
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38Exercise 7-03
1 How many decimal places does each of these numbers have?
Example 6
a 1.65
b 3.881
c 15.3062
d 0.005
e 7.045 73
f 814.3
g 9.100 001
h 203.222 22
i
0.040 400 4
2 Arrange these numbers in ascending order (smallest first):
Example 7
a 43.89, 56.324, 9.998, 80.879, 400, 23.89, 56.314
b 0.568, 0.684, 0.099, 1.002, 0.586, 5.608, 0.0586
c 1.23, 0.891, 1.814, 0.222, 7.007, 0.89
d 0.5, 0.05, 0.005
e 3.441, 3.404, 3.4, 3.44, 3.004, 3.044
f 0.2, 0.202, 0.22, 0.022
g 1.01, 1.002, 1.012, 1.21
h 0.07, 0.67, 0.71, 0.007, 7
3 Arrange these numbers in descending order (largest first):
Example 8
a 570.25, 125.63, 0.9899, 4000.99, 1256.3, 400.099
b 5.37, 6.539, 5.639, 5.367, 3.659, 3.66, 5.369
c 1.6, 1.61, 1.599, 1.601, 1.509
d 6, 0.06, 0.6, 6.6
e 0.7, 0.07, 0.707, 0.77, 0.007, 7.07
f 0.4004, 0.044, 0.404, 0.44
g 0.1, 0.08, 0.65, 0.029
h 0.92, 0.921, 0.09, 0.099
4 Insert
or
to make each of these true:
a 0.2
0.25
b 0.731
0.73
c 0.035
0.305
d 0.007
0.070
d 1.59
1.059
f 0.099
0.99
g 44.44
4.444
h 0.7932
0.7239
5 Copy each of those number lines carefully and fill in the values of the points marked with
purple dots:
a
1.9
2.3
1.6
b
4.09
4.11
4.07
c
0.65
0.67
0.71
d
8.0
8.1
8.16
8.2
e
0.07
0.23
f
2.6
2.0
g
4.3
4.4
4.5
4.6
4.7
204
NEW CENTURY MATHS 7
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