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WorksheetsUpper and Lower Bounds
Total questions: 14
Worksheet time: 42mins
the weight of a potatoes is 25 kg correct to the nearest kG /write down the smallest possible weight of the of bag /and also in largest
smallest24.5/largest25.5
smallest23.6/largest29.5
smallest24.5/largest25.5kg
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each of the numbers below has been rounded to the degree of accuracy shown in the brackets of the number 2.9
2.85 ≤ 2.9<2.95
2.71≤ 2.4 ≤ 2.35
2.8≤ 2.8≤ 2.66
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find the upper and lower bounds in each case 121(nearest hole number)
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111≤121<131
120.5≤121<121.5
120≤121<122
the mass of the girl is 60 kg her estimate is correct to the nearest 10 kg between what limits does the actual mass girl lie
50.5≤60<70.5
55≤60<65
50≤60<70
A bag of flour has a mass of 1500 g (to the nearest 10 g). Find the maximum mass of 10 bags of flour.
15050 g
15000.5 g
15000 g
15050 kg
The length and width of a field have been measured as 78m and 35m to the nearest metre. Find the greatest possible amount of fencing needed to surround the field
27
228
226.5
228.5
To the nearest thousand, 90 000 cars drive through the road toll in one week.Write down the lower bound for this number of cars.
85000
89950
89500
89999.5
The weight, w grams, of the bag of sweets is 250 g correct to the nearest 10 g. Find the lower bound and the upper bound of w
245 and 255
249.5 and 250.5
247.5 and 252.5
240 and 260
1. The length of a fence is 137 metres, correct to the nearest metre. Choose the upper and lower bound for the length of the fence.
136.5 m
141m
137.5m
132m
The following number has been rounded to 1 significant figure.
800
Find the lower bound...
850
750
849
749
The following number has been rounded to 1 significant figure.
8000
Find the upper bound...
8500
7500
8490
7490
The lower bound of 125cm rounded to the nearest 5cm is...
127.5
122.5
125.5
120
Dionne has 60 golf balls.
Each of these golf balls weighs 42 grams to the nearest gram.
Work out the greatest possible total weight of all 60 golf balls.
Give your answer in kilograms.
2550
2520
2544
2490
A car is stopped for speeding travelling at 85mph to the nearest 5mph. What is the slowest speed it could have been doing?
84.5
80
84
82.5
