Chapter 7 Decimals Worksheet - New Century Maths Page 31
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38Rounding to:
• the nearest tenth = one decimal place
• the nearest hundredth = two decimal places
• the nearest thousandth = three decimal places
Exercise 7-15
1 Write each of the following correct to one decimal place:
Example 20
a 0.35
b 0.47
c 0.81
d 0.69
e 2.55
f 0.32
g 0.90
h 2.88
2 Round each of the following to two decimal places:
a 0.481
b 0.736
c 0.069
d 0.293
e 0.309
f 0.655
g 2.096
h 3.995
3 Write each of the following correct to two decimal places:
a 25.3456
b 341.7675
c 321.3333
d 734.6541
e 27.757 575
f 1314.123 45
4 Copy this table into your book. Use a calculator to help you complete it.
Example 21
Rounded to
Rounded to
Question
Calculator display
one decimal place
two decimal places
÷ 3
12.19
4.063 333 3333
4.1
4.06
÷ 6
12.32
÷ 9
19.82
÷ 11
56.85
÷ 4
17.13
÷ 12
12.65
÷ 21
4.875
÷ 8
27.45
÷ 12
17
÷ 32
254.678
5 Use a calculator to find the value of each of the following divisions. Give your answers
to the nearest hundredths.
a 2.89 ÷ 3
b 8.57 ÷ 6
c 0.812 ÷ 9
d 7 ÷ 11
e 5.12 ÷ 6
f 11.71 ÷ 7
g 8 ÷ 6
h 12 ÷ 7
18.87 ÷ 11
i
j 12.62 ÷ 13
k 7 ÷ 12
9.38 ÷ 15
l
6 Round each of these numbers to four decimal places:
a 10.33374
b 431.543 27
c 1.444 95
d 3217.654 061
e 4.670 89
f 0.888 88
228
NEW CENTURY MATHS 7
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