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- 1. Multiple Choice
What is the upper bound and lower bound of 390 grams, measured to the nearest 10 grams?
395 and 385
390.5 and 389.5
400 and 300
400 and 350
- 2. Multiple Choice
What is 89,555 rounded to the nearest 10, 100 and 1,000?
89560 89500 and 89000
89550 89600 and 89600
89560 89600 and 90000
89560. 89600. and 89000
- 3. Multiple Choice
Round 248.561 to 1 decimal place
248.5
249
248.56
248.6
- 4. Multiple Choice
Round 53,879 to 2 significant figures.
53,800
53,900
53,88
54,000
- 5. Multiple Choice
The number 79 has been rounded to the nearest unit. Find its lower and upper bounds
78.5 ≤ 79 <79.5
78 ≤ 79 <80
78.4 ≤ 79 <79.4
- 6. Multiple Choice
The number 10 has been rounded to the nearest whole number. Find its lower and upper bounds
9 ≤ 10 < 10
9.5 ≤ 10 < 10.5
9 ≤ 10 < 11
- 7. Multiple Choice
The number 16 has been rounded to the nearest integer. Find its lower and upper bounds
15 ≤ 16 < 17
15 ≤ 16 < 16
15.5 ≤ 16 < 16.5
- 8. Multiple Choice
The number 1000 has been rounded to the nearest 100. Find its lower and upper bounds
950 ≤ 1000 < 1050
950 ≤ 1000 < 1050.1
950 ≤ 1000 < 1051
- 9. Multiple Choice
The number 51.2 has been rounded to the nearest 1 decimal place. Find its lower and upper bound
51.1 ≤ 51.2 < 51.2
51.15 ≤ 51.2 < 51.25
51 ≤ 51 < 51
- 10. Multiple Choice
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
- 11. Multiple Choice
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
- 12. Multiple Choice
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
- 13. Multiple Choice
The following number has been rounded to 1 significant figure.
800
Find the lower bound...
850
750
849
749
- 14. Multiple Choice
Work out the upper bound and lower bound for 32 cm, measured to the nearest cm
32.5 and 31.5
31.5 and 32.5
35 and 30
33 and 31
- 15. Multiple Choice
Zoe’s weight is 62 kg, correct to the nearest kilogram. Anu’s weight is 85 kg, correct to the nearest kilogram.
(a) Write down the upper bound for the weight of Zoe.
(b) Write down the lower bound for the weight of Anu.
a) 61.5 kg
a) 62.5 kg
b) 84.5 kg
b) 85.5 kg
- 16. Multiple Choice
The following number has been rounded to 1 significant figure.
0.8
Find the upper bound...
0.85
0.75
0.849
0.749
- 17. Multiple Choice
The following number has been rounded to 1 significant figure.
0.8
Find the lower bound...
0.85
0.75
0.849
0.749
- 18. Multiple Choice
The following number has been rounded to 1 significant figure.
0.08
Find the upper bound...
0.085
0.075
0.0849
0.0749
- 19. Multiple Choice
The following number has been rounded to the nearest metre.
200m
Find the upper bound...
200.5m
205m
250m
204.5m
- 20. Multiple Choice
The following number has been rounded to the nearest 10 metres.
200m
Find the upper bound...
200.5m
205m
250m
204.5m
- 21. Multiple Choice
The following number has been rounded to the nearest metre.
370m
Find the upper bound...
375m
370.5m
370.05m
375.5m
- 22. Multiple Choice
The following number has been rounded to the nearest 5 metres.
125m
Find the upper bound...
125.5m
127.5m
122.5m
125.05m
- 23. Multiple Choice
The following number has been rounded to the nearest 5 metres.
125m
Find the lower bound...
125.5m
127.5m
122.5m
124.5m
- 24. Multiple Choice
The following number has been rounded to the nearest metre.
2000m
Find the upper bound...
2000.5m
2005m
2500m
2004.5m
- 25. Multiple Choice
The following number has been rounded to the nearest 5 metres.
260m
Find the upper bound...
262.5m
257.5m
260.6m
259.5
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