Rounding Numbers: Master the Art of Estimation

Question 1

A company has a profit of £4,876,452. Rounded to the nearest million, what is the company's profit?

Accepted Answer

£5,000,000

Answer

£4,000,000

Answer

£4,500,000

Answer

£5,500,000

Question 2

Which of the following is the correct way to round the number 7,543 to the nearest hundred?

Accepted Answer

7,500

Answer

7,600

Answer

7,400

Answer

7,550

Question 3

The distance from London to Manchester is approximately 205 miles. Rounded to the nearest hundred, what is the distance?

Accepted Answer

200 miles

Answer

100 miles

Answer

300 miles

Answer

400 miles

Question 4

Which of the following is the correct way to round the number 4,987 to the nearest hundred?

Accepted Answer

5,000

Answer

4,900

Answer

4,800

Answer

4,950

Question 5

Which place value is being rounded to in the number 5,678,901 rounded to the nearest 100,000?

Accepted Answer

Hundreds of thousands

Answer

Thousands

Answer

Ten thousands

Answer

Millions

Question 6

Round the number 999,999 to the nearest 10,000.

Accepted Answer

1,000,000

Answer

990,000

Answer

1,010,000

Answer

1,020,000

Question 7

Round 456,789 to the nearest 1,000.

Accepted Answer

456,000

Answer

450,000

Answer

457,000

Answer

460,000

Question 8

Round 45,782 to the nearest 10,000.

Accepted Answer

50,000

Answer

40,000

Answer

45,000

Answer

55,000

Question 9

Estimate the value of 9,876,234 rounded to the nearest million.

Accepted Answer

10 million

Answer

9 million

Answer

11 million

Answer

12 million

Question 10

Which strategy is used for rounding numbers effectively?

Accepted Answer

Looking at the digit to the right of the rounding place

Answer

Adding or subtracting a small number

Answer

Multiplying by a large number

Answer

Dividing by a small number

Question 11

Which of the following is NOT a reason for rounding numbers?

Accepted Answer

To make numbers look smaller.

Answer

To simplify calculations.

Answer

To estimate values.

Answer

To remove unnecessary precision.

Question 12

A farmer has 9,567 sheep. To estimate the number of sheep to the nearest thousand, what is his estimate?

Accepted Answer

10,000

Answer

9,000

Answer

9,500

Answer

10,500

Question 13

What is 5,432 rounded to the nearest 100?

Accepted Answer

5,400

Answer

5,500

Question 14

What is the difference between 5,678,900 rounded to the nearest 1,000 and 5,678,900 rounded to the nearest 10,000?

Accepted Answer

9,000

Answer

8,000

Question 15

Which number is 7,890 rounded to the nearest 10,000?

Accepted Answer

10,000

Answer

0

Answer

20,000

Question 16

Round 456,789 to the nearest 100,000.

Accepted Answer

450,000

Answer

400,000

Answer

500,000

Question 17

A company has a profit of £3,456,789. If we round this number to the nearest million, what do we get?

Accepted Answer

£3,500,000

Answer

£3,000,000

Answer

£4,000,000

Question 18

A park has an area of 5,678,900 square metres. If we round this number to the nearest million, what is the estimated area of the park?

Accepted Answer

6,000,000 square metres

Answer

5,000,000 square metres

Answer

7,000,000 square metres

Question 19

Estimate the value of 5,678,901 to the nearest million.

Accepted Answer

6,000,000

Answer

5,000,000

Answer

7,000,000

Answer

8,000,000

Question 20

Round 4,567,890 to the nearest 100,000.

Accepted Answer

4,500,000

Answer

4,400,000

Answer

4,600,000

Answer

4,700,000

Question 21

Estimate 2,345,678 to the nearest 10,000.

Accepted Answer

2,350,000

Answer

2,340,000

Answer

2,400,000

Answer

2,450,000

Question 22

Round 6,789,012 to the nearest 10.

Accepted Answer

6,789,010

Answer

6,789,020

Answer

6,790,000

Answer

6,790,010

Question 23

Round 45,000 to the nearest 10,000.

Accepted Answer

50,000

Answer

40,000

Answer

45,010

Answer

44,990

Question 24

Round 7,321 to the nearest 10.

Accepted Answer

7,320

Answer

7,310

Answer

7,330

Answer

7,340

Question 25

3,456,789 rounded to the nearest million is:

Accepted Answer

3,500,000

Answer

3,000,000

Answer

4,000,000

Answer

4,500,000

Question 26

Estimate the rounded value of 9,876,452 to the nearest 10,000,000.

Accepted Answer

10,000,000

Answer

9,000,000

Answer

11,000,000

Answer

8,000,000

Question 27

Round 2,345,678 to the nearest 100,000.

Accepted Answer

2,400,000

Answer

2,300,000

Answer

2,500,000

Answer

3,000,000

Question 28

Estimate the rounded value of 7,890,123 to the nearest 10,000.

Accepted Answer

7,900,000

Answer

7,890,000

Answer

8,000,000

Answer

9,000,000

Question 29

Which of the following numbers rounds to 3,000 when rounded to the nearest 1,000?

Accepted Answer

3,000

Answer

2,999

Answer

3,001

Answer

3,500

Question 30

Find the value of 9,876,543 rounded to the nearest 1,000.

Accepted Answer

9,876,000

Answer

9,877,000

Answer

9,875,000

Answer

9,874,000

Question 31

Which number is rounded to 5,000,000 when rounded to the nearest million?

Accepted Answer

4,500,000

Answer

4,499,999

Answer

5,499,999

Answer

5,500,000

Question 32

Which of the following is 5,678,912 rounded to the nearest 10,000?

Accepted Answer

5,680,000

Answer

5,670,000

Answer

5,690,000

Answer

5,700,000

Question 33

Which of the following is 9,876,543 rounded to the nearest 10?

Accepted Answer

9,876,540

Answer

9,876,550

Answer

9,876,560

Answer

9,876,570

Question 34

Estimate the value of 7,892 to the nearest 100,000.

Accepted Answer

100,000

Answer

80,000

Answer

150,000

Question 35

Round the value of 3,245,678 to the nearest 10?

Accepted Answer

3,245,670

Answer

3,245,680

Answer

3,245,690

Question 36

What is the value of 3,456,789 rounded to the nearest 1,000,000?

Accepted Answer

4,000,000

Answer

3,000,000

Answer

5,000,000

Question 37

What is 7,890 rounded to the nearest 1,000? (Nearest 1,000)

Accepted Answer

8,000

Answer

7,000

Answer

9,000

Answer

10,000

Question 38

Which of these is NOT a step in rounding numbers?

Accepted Answer

Always round to the nearest even number.

Answer

Look at the digit in the rounding place.

Answer

If the digit is 5 or greater, round up.

Answer

If the digit is less than 5, round down.

Question 39

A shop sells apples for £0.25 each. If you buy 15 apples, estimate the total cost rounded to the nearest £. (Nearest £)

Accepted Answer

£5

Answer

£3

Answer

£4

Answer

£6

Question 40

Which of the following numbers is the greatest?

Accepted Answer

4,567 rounded to the nearest 100,000

Answer

4,567 rounded to the nearest 100

Answer

4,567 rounded to the nearest 1,000

Answer

4,567 rounded to the nearest 10,000

Question 41

Round 7,890,123 to the nearest 10.

Accepted Answer

7,890,120

Answer

7,890,130

Answer

7,890,020

Answer

7,890,230

Question 42

Which of the following numbers is closest to 100,000 when rounded to the nearest 100,000?

Accepted Answer

99,999

Answer

87,654

Answer

100,001

Answer

112,345

Question 43

Which of the following is the correct way to round 5,678 to the nearest 100?

Accepted Answer

5,600

Answer

5,700

Answer

5,800

Answer

5,900

Question 44

Round 4,567 to the nearest 100

Accepted Answer

4,500

Answer

4,600

Question 45

Round 25,678 to the nearest 10

Accepted Answer

25,670

Answer

25,680

Question 46

Which of the following numbers has the same value as 3,456 when rounded to the nearest 1,000?

Accepted Answer

3,500

Answer

3,000

Question 47

Round 678,901 to the nearest 100,000

Accepted Answer

700,000

Answer

600,000

Question 48

Estimate the sum of 4,567 and 2,345 to the nearest 100

Accepted Answer

7,000

Answer

6,800

Question 49

Explain why 1,234,567 is rounded to 1,235,000 when rounded to the nearest 100,000

Accepted Answer

Because the digit in the hundred thousands place is 5 or greater

Answer

Because the digit in the ten thousands place is 4 or less

Question 50

Which of the following is the best estimate of 5,678,910 rounded to the nearest 10?

Accepted Answer

5,678,900

Answer

5,678,910

Answer

5,678,920

Answer

5,678,930

Question 51

Round 2,987,654 to the nearest 100,000.

Accepted Answer

3,000,000

Answer

2,900,000

Answer

3,100,000

Answer

3,200,000

Question 52

Which of the following is not a valid rounding rule for rounding to the nearest 10?

Accepted Answer

Always round up to the next highest number.

Answer

Look at the digit in the ones place.

Answer

If the digit is 5 or more, round up.

Answer

If the digit is less than 5, round down.

Question 53

Round 4,567,890 to the nearest 100,000.

Accepted Answer

4,500,000

Answer

4,600,000

Question 54

Round 6,789,012 to the nearest 10,000.

Accepted Answer

6,790,000

Answer

6,780,000

Question 55

Estimate the value of 8,923,456 to the nearest 10,000.

Accepted Answer

8,920,000

Answer

8,900,000

Answer

8,910,000

Answer

8,930,000

Question 56

Round the number 12,345 to the nearest 1,000.

Accepted Answer

12,000

Answer

12,500

Answer

13,000

Answer

13,500

Question 57

Round the number 4,567,890 to the nearest 10.

Accepted Answer

4,567,900

Answer

4,567,880

Answer

4,567,890

Answer

4,568,000

Question 58

Estimate the value of 2,987,654 to the nearest 100,000.

Accepted Answer

3,000,000

Answer

2,900,000

Answer

3,100,000

Answer

3,200,000

Question 59

Which number is closest to 100,000 when rounded to the nearest 10,000?

Accepted Answer

102,000

Answer

95,000

Answer

108,000

Question 60

If a shop has approximately 5,432 items in stock, to the nearest 1,000, how many items are there?

Accepted Answer

5,000

Answer

4,000

Answer

6,000

Question 61

Which of the following numbers is equivalent to 345,678 rounded to the nearest 10?

Accepted Answer

345,680

Answer

345,675

Answer

345,690

Question 62

Estimate the population of a city with 956,789 inhabitants rounded to the nearest 100,000.

Accepted Answer

1,000,000

Answer

900,000

Answer

1,100,000

Question 63

Round 2,987,654 to the nearest thousand.

Accepted Answer

2,988,000

Answer

2,987,000

Answer

2,989,000

Question 64

Which number is the result of 4,567,890 rounded to the nearest 100,000?

Accepted Answer

4,600,000

Answer

4,500,000

Answer

4,700,000