Estimation by Rounding
Round the following number to the nearest whole number.
32.769
33
$4.12 + $5.93 + $7.11 =
5.25
5.96
4.58
5.14
6.82
about 25
Find the mean, median, mode, and range of the following test scores:
78, 78, 88, 85, 87, 90,90, 90, 94
Mean: 86.66666666
Median: 88
Mode: 90
Range: 16
Use the formula d = rt to solve.
r = 4 miles/hr.
d = 457 miles
t = 114. 25 hours
Round the following number to the nearest hundredth place.
452.172
452.17
10.05 - 2.98 - 5.60 =
about 1.3
12.52
12.85
12.33
12.45
11.69
about 60
Find the mean, median, mode and range of the following test scores.
67, 72, 72, 74, 80, 74, 79
Mean: 74
Median: 74
Mode: 72 and 74
Range: 13
Use the formula P = 2L + 2W to solve.
length = 42.6 in.
width = 22.5 in
P = 130.2 inches
Round the following number to the nearest tenth place.
23.12
23.1
$45.51 + $65.22 + $77.99 =
about $188.70
8.21
8.36
7.75
7.36
9.10
about 40
Find the mean, median, mode, and range of the following temperatures
55, 43, 45, 58, 52, 47
Mean:50
Median: 49.5
Mode: None
Range: 15
Use the formula d = rt to solve.
r = 11.5 miles/hr.
t = 14 hours
d = 161 miles
Round the following number to the nearest whole number.
127.325
127
25.63 + 24.15 + 19.08 =
about 68.90
124.65
124.68
124.01
124.85
125.20
about 620
Which measure of tendency best describes this situation?
favorite Halloween candy
mode
Use the formula F = n/4 + 37 to solve.
90 chirps/min
F = 59.5 degrees
Round the following number to the nearest hundred.
678.554
700
$325.89 + $524.88 + $410.15 =
about $1, 261
1,353.20
1,346.30
1,198.82
1,262.58
1,312.50
about 6,500
Which measure of tendency best describes this situation?
ages of students in freshman year of college
median
Use the formula F = n/4 +37 to solve.
168 chirps/min
F = 79 degrees