WorksheetsChapter 6.1
Total questions: 8
Worksheet time: 24mins
Name
Class
Date
1.
Round off 36.752 to the nearest one.
a)
36
b)
36.8
c)
37
d)
37.0
2.
Round down 1 780.86 to the nearest hundred.
a)
1700
b)
1780
c)
1781
d)
1800
3.
Round up each number in 231 + 356 + 165 + 193 to the nearest ten and then estimate the values of the expressions.
a)
960
b)
970
c)
950
d)
980
4.
By choosing a suitable clustered value, estimate the values of 72 + 69 + 71 + 67.
a)
320
b)
240
c)
280
d)
200
5.
Round off 199 to the nearest ten.
a)
190
b)
200
c)
180
d)
210
6.
By front-end method, estimate the values of 143 + 86 + 68 - 234.
a)
30
b)
40
c)
50
d)
60
7.
Estimate the value of 146.7 - 32.3 + 46.5 by rounding down each number to the nearest one.
a)
160
b)
170
c)
150
d)
140
8.
By choosing a suitable clustered value, estimate the values of (88 + 92 + 91 + 87) ÷ 6.
a)
50
b)
60
c)
70
d)
80
100 %
