Middle Years

# 1.11 Rounding

Worksheet
Round whole numbers
1

Round the following numbers plotted on the number line to the nearest 100:

a
b
c
2

Round the following numbers to the nearest 10:

a

85

b

81

c

174

d

2076

e

1152

f

7

g

11\,207

h

106

i

47\,523

j

936

k

725\,817

l

5099

3

Round the following numbers to the nearest 100:

a

642

b

791

c

250

d

1181

e
4370
f

15\,575

g

65

h
25
i
968
j
2968
k
37\,920
l
4001
4

Round the following numbers to the nearest thousand:

a

3322

b

31\,835

c

96\,501

d

4214

e

7521

f

16\,600

g

17\,500

h

6\,400

i

11\,100

j

50\,025

k

550\,475

l

813\,244

5

Round 9\,264\,444 to the nearest million.

6

Three numbers have been rounded as follows:

• 2400 was rounded to 2400
• 3640 was rounded to 3600
• 3546 was rounded to 3500

Were the numbers rounded to the nearest ten, hundred or thousand?

7

Write three different numbers that round to 80 when rounded to the nearest ten.

8

Write three different numbers that round to 400 when rounded to the nearest hundred.

Round decimals
9

Round the following to the nearest whole number:

a
2.19
b
5.97
c
24.09
d
33.931
e
0.5
f
0.05
g
0.799
h
89.5
i

35.7

j

85.2

k

22.678

l

26.279

10

Round the following numbers to the nearest tenth:

a

0.53

b

0.20

c

8.55

d

9.89

e

95.19

f

143.837

g

889.925

h

38.2182

i

11.895\,72

j

5.99

k

64.582

l

391.82

11

Round the following numbers to the nearest hundredth:

a

7.84

b

0.500

c

6.725

d

0.0829

e

18.307

f

733.052

g

85.1446

h

61.794\,52

i

9.727\,54

j
2.897
k
328.864
l
14.285
m
67.001
n
0.007
o
12.999
p
99.999
12

Round the following numbers to the nearest thousandth:

a

3.0530

b

430.4875

c

992.6044

d

3.048\,00

e

0.022\,69

f

49.037\,49

g

9.9999

h

3.620\,52

13

Round the following to one decimal place:

a
0.41
b
8.35
c
79.38
d
0.3009
e
3.55
f
19.95
g
13.88
h
1.0099
i

0.30

j

6.65

k

524.621

l

2.99

14

Round the following to two decimal places:

a
2.697
b
393.586
c
0.435
d
7.3582
e
79.997
f
2.0029
g
149.955
h
0.099
i

8.525

j

61.109

k

6.168\,78

15

Round the following to three decimal places:

a
11.8483
b
2.159\,76
c
4.504\,13
d
1.599\,64
e
90.0335
f
0.5987
g
41.5005
h
9.9996
i

0.093\,84

j

808.5042

16

Round the following to four decimal places:

a
5.659\,64
b
5.600\,96
c
12.006\,65
d
39.999\,95
e

7.034\,500

f

0.041\,454

g

99.097\,906

h

9.999\,99

17

Round the following to the nearest five cents:

a

\$20.32 b \$50.53

c

\$100.36 d \$86.58

e

\$37.99 f \$199.98

18

Luigi is paying with cash at the supermarket, and his shopping bill totals \$337.57. How much does he pay? 19 Irene is paying cash at the petrol station and the petrol meter reads \$75.79. How much does she pay?