Free Printable Significant Figures

1.

What is 78.5 rounded to one significant figure?

a)

79

b)

78.5

c)

70

d)

80

2.

Round off 1,296,717 to 3 significant figures

a)

1,290,000

b)

1,296,000

c)

1,297,000

d)

1,300,000

3.

Round off 509.96 to 4 significant figures

a)

509.9

b)

509.0

c)

510.0

d)

510

4.

What is 0.658 rounded to 1 significant figure?

a)

0

b)

0.66

c)

0.7

d)

0.658

5.

Round 0.010229 to four significant figures

a)

1022

b)

1023

c)

0.01023

d)

0.01022

6.

Round 1047.78 to three significant figures.

a)

104

b)

105

c)

1050

d)

1050.00

7.

What is 375.6523 to four significant figures.

a)

375.0

b)

375.00

c)

375.7

d)

375.6

8.

Round 1099 to three significant figures.

a)

100

b)

101

c)

1010

d)

1,000

9.

What is 7.555 rounded to two significant figures.

a)

7.6

b)

7.5

c)

70

d)

76

10.

Round 8,775 to three significant figures.

a)

877

b)

8,770

c)

8,780

d)

8,770

11.

Round 7384 to 1 significant figure:

a)

7300

b)

7000

c)

7380

d)

7.384

12.

Round 1,296,717 to 3 significant figures:

a)

1,200,000

b)

1,296,000

c)

1,297,000

d)

1,300,000

13.

Round 0.658 to 1 significant figure:

a)

0

b)

0.66

c)

0.7

d)

0.658

14.

How many significant figures are in the number? 0.003068 m

a)

6

b)

3

c)

4

d)

7

15.

Round 888 to one significant figure:

a)

900

b)

800

c)

880

d)

890

16.

What is the 2nd significant figure of 0.40520?

a)

4

b)

5

c)

0

d)

2

17.

Round 0.98907 to one significant figure:

a)

0.9

b)

0.10

c)

1

d)

9.8907

18.

Round 0.000328 to one significant figure:

a)

0

b)

0.0003

c)

0.00033

d)

0.000328

19.

Round 0.000328 to one significant figure:

a)

0

b)

0.0003

c)

0.00033

d)

0.000328

20.

Round 217.132 to one significant figure:

a)

200

b)

217

c)

217.1

d)

210

21.

What is the second significant figure in 0.010229?

a)

1

b)

0

c)

2

d)

9

22.

How many significant figures are there in a substance with a mass of 0.084 grams?

a)

0

b)

2

c)

3

d)

4

23.

How many significant figures are there in 0.0070 ?

a)

1

b)

2

c)

5

d)

none of these

24.

State the following number 856.7 to 3 significant figures

a)

857

b)

860

c)

856.70

d)

856

25.

Fikri says 653 rounds to 700 and Bagus says 653 rounds to 650. Who is the correct if they are rounding for two significant figures?

a)

Bagus

b)

Fikri

c)

Both

d)

None

26.

Which of the following numbers will round to 45,000 ?

a)

45,123

b)

43,712

c)

45,616

d)

44,123

27.

Round 0.2597 to one significant figure.

a)

0.3

b)

0.2

c)

0.06

d)

0.009

28.

Round 32.178 to the nearest HUNDREDTH.

a)

32.2

b)

32

c)

32.18

d)

33.18

29.

0.0499 =

a)

0.05 (correct to 2 significant figures).

b)

0.05 (correct to 3 significant figures).

c)

0.050 (correct to 2 significant figures).

d)

0.050 (correct to 3 significant figures).

30.

How many significant figures are there in 620.0 grams?

a)

1

b)

2

c)

3

d)

4

31.

Round this number to 1 significant figure

23.476

a)

20

b)

23

c)

23.5

d)

2

32.

Round off 0.4927 to the nearest thousandth.

a)

0.50

b)

0.490

c)

0.500

d)

0.493

33.

What is the first significant figure in 0.0457?

a)

4

b)

5

c)

0

d)

7

34.

What is the first significant figure in 23.45?

a)

5

b)

4

c)

3

d)

2

35.

What is 78.5 rounded to one significant figure?

a)

79

b)

78.5

c)

70

d)

80

36.

What is 0.658 rounded to 1 significant figure?

a)

0

b)

0.66

c)

0.7

d)

0.658

37.

round to 2 decimal places 22.484

a)

22.49

b)

22.48

c)

22.40

d)

22.00

38.

Round off 509.96 to 4 significant figures.

a)

509.9

b)

509.0

c)

510.0

d)

510

39.

Round to the nearest whole number.
325.6

a)

326

b)

300

c)

320

40.

Round 72.178 to the nearest HUNDREDTH.

a)

72.2

b)

72

c)

72.18

d)

73.18

41.

Round 46.786358 to 3 decimal places

a)

46.768

b)

46.786

c)

46.358

d)

46786

42.

Round to the nearest whole number.
217.132

a)

200

b)

217

c)

217.1

43.

Round 0.010229 to four sig figs

a)

1022

b)

1023

c)

0.01023

d)

0.01022

44.

Round 52689 to 3 significant figures.

a)

526

b)

527

c)

52600

d)

52700

45.

Round 1235 to 2 significant figures.

a)

12

b)

1200

c)

1200.

d)

1200.00

46.

Round 7256.320004 to 8 significant figures.

a)

7256.3200

b)

7256.0000

c)

72563200

d)

72560000

47.

Round 123856 to 4 significant figures.

a)

1238

b)

123800

c)

1239

d)

123900

48.

Round 0.00258954 to 4 significant figures.

a)

0.0025

b)

0.002589

c)

0.002580

d)

0.002590

49.

Round 364,536 to the nearest thousand.

a)

365,536

b)

365,000

c)

364,000

d)

5,000

50.

0.5 ÷ 100

a)

5

b)

50

c)

0.05

d)

0.005

51.

6.1 + 1.2

a)

7.2

b)

7.4

c)

7.5

d)

7.3

52.

What is the 2nd significant figure of 0.40520?

a)

4

b)

5

c)

0

d)

2

53.

Round 46.786358 to 3 decimal places

a)

46.768

b)

46.786

c)

46.358

d)

46786

54.

Round to the nearest whole number.
217.132

a)

200

b)

217

c)

217.1

55.

Which of the following numbers will NOT round to 400 when rounding to the nearest hundred?

a)

409

b)

445

c)

345

d)

398

56.

There are 293 steps to the top of the Leaning Tower of Pisa in Italy. To the nearest hundred, about how many steps are there?

a)

200

b)

300

c)

290

d)

250

57.

Which of these numbers does not round to 0.50 to 2 decimal places?

a)

0.491

b)

0.4956

c)

0.5012

d)

0.503

58.

What is 12.99 rounded to 1 decimal place?

a)

13

b)

13.0

c)

12.9

d)

12.10

59.

How many significant figures does the following number have: 0.002040

a)

6

b)

4

c)

3

d)

2

60.

How many sig figs are there?
100000000

a)

1

b)

9

c)

10

61.

Tyler says 753 rounds to 800. Alexis says 753 rounds to 750. Who is correct?

a)

Tyler

b)

Alexis

c)

Both of them are right, it depends on whether you are rounding to the nearest ten or hundred

d)

Niether of them are right

62.

How many significant figures are there in -0.09080?

a)

3

b)

4

c)

5

d)

6

63.

0.027182 =

a)

0.02, correct to 1 significant figure

b)

0.027, correct to 2 decimal places

c)

0.0271, correct to 3 decimal places

d)

0.02718, correct to 4 significant figures

64.

How many significant figures does the following number have?

9000

a)

1

b)

2

c)

3

d)

4

65.

306 000 cannot be the result of rounding off a number to

a)

2 significant figures.

b)

3 significant figures.

c)

4 significant figures.

d)

5 significant figures.

66.

When rounding off a number to k significant figure(s), the result is 290. Which of the following is a possible value of k?

a)

1

b)

4

c)

5

d)

None of the above

67.

A primary school has 400 pupils rounded to one significant figure...

What is the smallest possible number of pupils at the school?

a)

450

b)

350

c)

399

d)

400

68.

The population of a village is 3000 rounded to one significant figure...

What is the smallest possible population?

a)

2500

b)

3500

c)

2000

d)

2999

69.

The correct value of 0.006472867 up to three significant figures is

a)

0.00647

b)

0.00867

c)

0.006

d)

0.647

70.

The number of significant figures in 9.00823 are

a)

Five

b)

Six

c)

Three

d)

One

Significant Figures

Total questions: 70

Worksheet time: 2hrs 29mins

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