L1
Rounding and estimating quiz
Level A
1. 24 rounded to the nearest 10 would be ...
A) 20
B) 25
C) 30
2. 56 rounded to the nearest 10 would be ...
A) 50
B) 55
C) 60
3. 89p rounded to the nearest 10p would be ...
A) 80p
B) 85p
C) 90p
4. £1.22 rounded to the nearest 10p would be ...
A) £1.20
B) £1.25
C) £1.30
5. £148 rounded to the nearest £10 would be ...
A) £140
B) £145
C) £150
6. 473 cm rounded to the nearest 10 cm would be ...
A) 470 cm
B) 475 cm
C) 480 cm
© BBC 2011
L1
Rounding and estimating quiz
7. While following a recipe, Averil decides to approximate and weigh her ingredients to the
nearest 10 g.
Averil has weighed out 123 g of sugar. How much sugar has the recipe called for?
A) 120 g
B) 125 g
C) 130 g
8. Matthew has measured out 595 cm of ribbon. If he has rounded to the nearest 10 cm,
approximately how much ribbon does he need?
A) 590 cm
B) 595 cm
C) 600 cm
9. A builder gives me an estimate for some work at £328. If he decided to round this off to the
nearest £10, what would be his estimate?
A) £320
B) £325
C) £330
10. The distance between two towns is 246 miles. Approximating this distance to the nearest 10
miles would be
A) 240 miles
B) 245 miles
C) 250 miles
© BBC 2011
L1
Rounding and estimating quiz
Level B
1. 456 rounded to the nearest 100 would be ...
A) 400
B) 460
C) 500
2. 809 rounded to the nearest 100 would be ...
A) 800
B) 810
C) 900
3. £493 rounded to the nearest £100 would be ...
A) £400
B) £500
C) £490
4. £578 rounded to the nearest £100 would be ...
A) £500
B) £600
C) £580
5. 416 rounded to the nearest 100 would be ...
A) 500
B) 420
C) 400
6. The length of my garden is 820cm. Since I am going to convert this figure to metres, I will
round to the nearest 100cm and estimate the length as ...
A) 820 cm
B) 800 cm
C) 900 cm
© BBC 2011
L1
Rounding and estimating quiz
7. The weight given of a newborn baby was 3 409 g. This could be approximated to the nearest
100 g as ...
A) 3 400 g
B) 3 410 g
C) 3 500 g
8. A cinema has enough seats for 676 customers. The cinema estimates the amount of
customers by rounding to the nearest 100.
How many seats would the cinema advertise they have?
A) 600
B) 680
C) 700
9. There are 465 students attending basic skills classes in a college. Approximately how many
students attending basic Skills classes to the nearest 100 students?
A) 400
B) 470
C) 500
10. The population of a small town is 887 people. This can be approximated to the nearest 100 as
...
A) 800
B) 890
C) 900
© BBC 2011
L1
Rounding and estimating quiz
Level C
1. 8 462 rounded to the nearest 1 000 would be ...
A) 8 000
B) 8 500
C) 9 000
2. 5 673 rounded to the nearest 1 000 would be ...
A) 6 000
B) 5 600
C) 5 000
3. £9 134 rounded to the nearest £1 000 would be ...
A) £9 000
B) £9 100
C) £10 000
4. £12 874 rounded to the nearest £1 000 would be ...
A) £12 000
B) £12 900
C) £13 000
5. Karen has worked out the cost of a family holiday to be £3 725. She decides to estimate this
to the nearest £1 000. The estimate she would use would be ...
A) £3 000
B) £3 700
C) £4 000
6. Rachel is changing 8.356 metres into millimetres. She gets an answer of 8 356 mm. A good
estimate of her answer to the nearest 1 000 mm would be ...
A) 8 000 mm
B) 8 400 mm
C) 9 000 mm
© BBC 2011
L1
Rounding and estimating quiz
7. Suba multiplies two numbers on a calculator and get an answer of 13 067. She needs the
answer to the nearest 1 000. What number will she write down?
A) 13 000
B) 13 100
C) 14 000
8. The number of people attending a concert was 5 367. The newspapers reported this to the
nearest 1 000 as ...
A) 5 000
B) 5 400
C) 6 000
9. There are 12 789 students attending a college. Approximating this number to the nearest
1 000 students would be ...
A) 12 000
B) 12 800
C) 13 000
10. On a particular day the population of a country is 32 564 people. As this number changes
daily it is rounded to the nearest 1 000 as ...
A) 32 000
B) 32 600
C) 33 000
© BBC 2011
L1
Rounding and estimating quiz
Answers
Level A
1. 24 rounded to the nearest 10 would be ...
The correct answer is: A. 20
You need to round down as the unit figure is 4.
2. 56 rounded to the nearest 10 would be ...
The correct answer is: C. 60
You need to round up as the unit figure is 6.
3. 89p rounded to the nearest 10p would be ...
The correct answer is: C. 90p
You need to round up as the unit figure is 9.
4. £1.22 rounded to the nearest 10p would be ...
The correct answer is: A. £1.20
You need to round down as the unit figure is 2.
5. £148 rounded to the nearest £10 would be ...
The correct answer is: C. £150
You need to round up as the unit figure is 8.
© BBC 2011
L1
Rounding and estimating quiz
6. 473 cm rounded to the nearest 10 cm would be ...
The correct answer is: A. 470 cm
You need to round down as the unit figure is 3.
7.
While following a recipe, Averil decides to approximate and weigh her ingredients to the
nearest 10 g.
Averil has weighed out 123 g of sugar. How much sugar has the recipe called for?
The correct answer is: A. 120 g
You need to round down as the unit figure is 3.
8. Matthew has measured out 595 cm of ribbon. If he has rounded to the nearest 10 cm,
approximately how much ribbon does he need?
The correct answer is: C. 600 cm
You need to round up as the unit figure is 5.
9. A builder gives me an estimate for some work at £328. If he decided to round this off to the
nearest £10, what would be his estimate?
The correct answer is: C. £330
You need to round up as the unit figure is 8.
10. The distance between two towns is 246 miles. Approximating this distance to the nearest 10
miles would be ...
The correct answer is: C. 250 miles
You need to round up as the unit figure is 6.
© BBC 2011
L1
Rounding and estimating quiz
Level B
1. 456 rounded to the nearest 100 would be ...
The correct answer is: C. 500
You need to round up as the tens figure is 5.
2. 809 rounded to the nearest 100 would be ...
The correct answer is: A. 800
You round down as the tens figure is 0.
3. £493 rounded to the nearest £100 would be ...
The correct answer is: B. £500
You need to round up as the tens figure is 9.
4. £578 rounded to the nearest £100 would be ...
The correct answer is: B. £600
You round up as the tens figure is 7.
5. 416 rounded to the nearest 100 would be ...
The correct answer is: C. 400
You need to round down as the tens figure is 1.
© BBC 2011
L1
Rounding and estimating quiz
6. The length of my garden is 820cm. Since I am going to convert this figure to metres, I will
round to the nearest 100cm and estimate the length as ...
The correct answer is: B. 800 cm
You need to round down as the tens figure is 2.
7. The weight given of a newborn baby was 3 409 g. This could be approximated to the nearest
100 g as ...
The correct answer is: A. 3 400 g
You need to round down as the tens figure is 0.
8. A cinema has enough seats for 676 customers. The cinema estimates the amount of
customers by rounding to the nearest 100.
How many seats would the cinema advertise they have?
The correct answer is: C. 700
You need to round up as the tens figure is 7.
9. There are 465 students attending basic skills classes in a college. Approximately how many
students attending basic Skills classes to the nearest 100 students?
The correct answer is: C. 500
You need to round up as the tens figure is 6.
10. The population of a small town is 887 people. This can be approximated to the nearest 100 as
...
The correct answer is: C. 900
You need to round up as the tens figure is 8.
© BBC 2011
L1
Rounding and estimating quiz
Level C
1. 8 462 rounded to the nearest 1 000 would be ...
The correct answer is: A. 8 000
You need to round down as the hundreds figure is 4.
2. 5 673 rounded to the nearest 1 000 would be ...
The correct answer is: A. 6 000
You round up as the hundreds figure is 6.
3. £9 134 rounded to the nearest £1 000 would be ...
The correct answer is: A. £9 000
You need to round down as the hundreds figure is 1.
4. £12 874 rounded to the nearest £1 000 would be ...
The correct answer is: C. £13 000
You round up as the hundreds figure is 8.
5. Karen has worked out the cost of a family holiday to be £3 725. She decides to estimate this
to the nearest £1 000. The estimate she would use would be ...
The correct answer is: C. £4 000
You need to round up as the hundreds figure is 7.
© BBC 2011
L1
Rounding and estimating quiz
6. Rachel is changing 8.356 metres into millimetres. She gets an answer of 8 356 mm. A good
estimate of her answer to the nearest 1 000 mm would be ...
The correct answer is: A. 8 000 mm
You need to round down as the hundreds figure is 3.
7. Suba multiplies two numbers on a calculator and get an answer of 13 067. She needs the
answer to the nearest 1 000. What number will she write down?
The correct answer is: A. 13 000
You need to round down as the hundreds figure is 0.
8. The number of people attending a concert was 5 367. The newspapers reported this to the
nearest 1 000 as ...
The correct answer is: A. 5 000
You need to round down as the hundreds figure is 3.
9. There are 12 789 students attending a college. Approximating this number to the nearest 1
000 students would be ...
The correct answer is: C. 13 000
You round up as the hundreds figure is 7.
10. On a particular day the population of a country is 32 564 people. As this number changes
daily it is rounded to the nearest 1 000 as ...
The correct answer is: C. 33 000
You need to round up as the hundreds figure is 5.
© BBC 2011