Free Printable IGCSE significant figures

1.

How many sig figs are there?
100000000

a)

1

b)

9

c)

10

2.

How many sig figs are there?
0.000008

a)

1

b)

2

c)

6

d)

7

3.

How many significant figures: 2016 m

a)

1

b)

2

c)

3

d)

4

4.

How many significant figures: 153.0 mL

a)

1

b)

2

c)

3

d)

4

5.

How many significant figures: 0.012 km

a)

1

b)

2

c)

3

d)

4

6.

How many significant figures: 1000 mL

a)

1

b)

2

c)

3

d)

4

7.

How many significant figures: 100.000 cL

a)

1

b)

3

c)

5

d)

6

8.

How many significant figures: 0.001 g

a)

4

b)

3

c)

2

d)

1

9.

How many significant figures: 4.20 cm

a)

1

b)

2

c)

3

d)

4

10.

How many significant figures: 0.010 L

a)

1

b)

2

c)

3

d)

4

11.

How many significant figures: 216 m

a)

1

b)

2

c)

3

d)

0

12.

How many significant figures: 450 m

a)

3

b)

2

c)

1

d)

0

13.

How many sig figs are there?
100.00

a)

1

b)

3

c)

4

d)

5

14.

How many sig figs are there?
100.00

a)

1

b)

3

c)

4

d)

5

15.

How many sig figs are there?
100000000

a)

1

b)

9

c)

10

16.

How many sig figs are there?
4004

a)

1

b)

2

c)

3

d)

4

17.

How many sig figs are there?
0.000008

a)

1

b)

2

c)

6

d)

7

18.

How many sig figs are there?
0.00400

a)

1

b)

3

c)

5

d)

6

19.

How many sig figs are there?
9009.00

a)

2

b)

4

c)

5

d)

6

20.

How many sig figs are there?
4000.

a)

1

b)

3

c)

4

21.

How many sig figs are there?
27000000

a)

2

b)

5

c)

8

22.

How many sig figs are there?
5.00000008

a)

2

b)

6

c)

9

23.

Which of the following numbers has three significant figures?

a)

1014 miles

b)

101 feet

c)

1000 yards

d)

all of the choices

24.

How many significant figures does the following number have: 0.002040

a)

6

b)

4

c)

3

d)

2

25.

How many significant figures does the following number have: 0.998005

a)

9

b)

10

c)

6

d)

5

26.

Calculate 7.987 m - 0.54 m and give your answer with the correct number of significant figures.

a)

7.45 m

b)

7.447 m

c)

7.4 m

d)

7.5 m

27.

Calculate 1.23 m x 0.89 m and give your answer with the correct number of significant figures.

a)

1.0 m²

b)

1.1 m²

c)

1.0947 m²

d)

1.095 m²

28.

Calculate 923 g ÷ 20312 cm³ and give your answer with the correct number of significant figures.

a)

0.04 g/cm³

b)

0.045 g/cm³

c)

0.0454 g/cm³

d)

0.05 g/cm³

29.

Calculate 12.47 m ÷ 3.2 s and give your answer with the correct number of significant figures.

a)

4 m/s

b)

3.9 m/s

c)

3.90 m/s

d)

3.897 m/s

30.

Calculate 0.020 cm x 50 cm x 11.1 cm and give your answer with the correct number of significant figures.

a)

10 cm³

b)

11.1 cm³

c)

11 cm³

d)

11. cm³

31.

Which of the following numbers have four significant figures?

a)

56.75 g

b)

40.01 g

c)

0.6000 g

d)

all of the choices

32.

All of the following have one significant figure except:

a)

100 cm

b)

0.0001 cm

c)

2 cm

d)

2.00 cm

33.

How many significant figures: 450 m

a)

3

b)

2

c)

1

d)

0

34.

How many significant numbers does the following number have? 246.32

a)

2

b)

3

c)

4

d)

5

35.

How many significant figures does the following number have? 0.02

a)

1

b)

2

c)

2

d)

4

36.

How many significant figures does the following number have? 0.020

a)

1

b)

2

c)

3

d)

4

37.

How many significant figures does the following number have? 501

a)

1

b)

2

c)

3

d)

4

38.

How many significant figures does the following number have? 501.0

a)

1

b)

2

c)

3

d)

4

39.

How many significant figures does the following number have? 5,000.

a)

1

b)

2

c)

3

d)

4

40.

How many significant figures does the following number have? 6,051.00

a)

3

b)

4

c)

5

d)

6

41.

How many significant figures does the following number have? 0.0005

a)

1

b)

2

c)

3

d)

4

42.

How many significant figures does the following number have? 0.1020

a)

1

b)

2

c)

3

d)

4

43.

How many significant figures does the following number have? 709.2

a)

1

b)

2

c)

3

d)

4

44.

How many significant figures does the following number have? 36.00

a)

1

b)

2

c)

3

d)

4

45.

How many significant figures does the following number have? 0.14

a)

1

b)

2

c)

3

d)

4

46.

How many significant figures does the following number have? 7.0

a)

1

b)

2

c)

3

d)

4

47.

How many significant figures does the following number have? 385

a)

1

b)

2

c)

3

d)

4

48.

How many significant figures does the following number have? 0.47

a)

1

b)

2

c)

3

d)

4

49.

How many significant figures does the following number have? 65.42

a)

1

b)

2

c)

3

d)

4

50.

How many significant figures does the following number have? 5006.12

a)

4

b)

5

c)

6

d)

7

51.

How many significant figures does the following number have? 100.6040

a)

4

b)

5

c)

6

d)

7

52.

How many significant figures does the following number have? 100

a)

1

b)

2

c)

3

d)

4

53.

How many significant figures does the following number have? 5,000

a)

1

b)

2

c)

3

d)

4

54.

What is 78.5 rounded to one significant figure?

a)

79

b)

78.5

c)

70

d)

80

55.

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

56.

What is 0.658 rounded to 1 significant figure?

a)

0

b)

0.66

c)

0.7

d)

0.658

57.

What is 78.5 rounded to one significant figure?

a)

79

b)

78.5

c)

70

d)

80

e)

78

58.

Round 1,296,717 to 3 significant figures

a)

1,290,000

b)

1,296,000

c)

1,297,000

d)

1,300,000

e)

1.30 x 10⁶

59.

Round 509.96 to 4 significant figures

a)

509.9

b)

509.0

c)

510.0

d)

510

60.

What is 0.658 rounded to 1 significant figure?

a)

0

b)

0.66

c)

0.7

d)

0.658

e)

1

61.

Round 0.010229 to four significant figures

a)

1022

b)

1023

c)

0.01023

d)

0.01022

62.

Round 1047.78 to three significant figures.

a)

104

b)

105

c)

1050

d)

1050.00

63.

What is 375.6523 to four significant figures?

a)

375.0

b)

375.00

c)

375.7

d)

375.6

64.

Round 1099 to three significant figures.

a)

1.10 x 10³

b)

101

c)

1010

d)

1,000

e)

1100

65.

Round 8,775 to three significant figures.

a)

877

b)

8,770

c)

8,780

d)

8,770

66.

What is 7.555 rounded to two significant figures?

a)

7.6

b)

7.5

c)

70

d)

76

e)

7.60

67.

Round the following value to one significant figure...

15

a)

10

b)

20

c)

100

d)

2

68.

Round the following value to one significant figure...

236

a)

200

b)

230

c)

240

d)

300

69.

Round 1047.78 to three sig figs

a)

104

b)

105

c)

1050

d)

1050.00

70.

What is the measurement 1042 Liters rounded to 2 significant figures?

a)

1040 L

b)

1.1 x 10³ L

c)

1.0 x 10³L

d)

1050 L

71.

What is 78.5 rounded to one significant figure?

a)

79

b)

78.5

c)

70

d)

80

72.

What is 0.658 rounded to 1 significant figure?

a)

0

b)

0.66

c)

0.7

d)

0.658

73.

Round 0.010229 to four significant figures

a)

1022

b)

1023

c)

0.01023

d)

0.01022

74.

What is 7.555 rounded to two significant figures?

a)

7.6

b)

7.5

c)

70

d)

76

e)

7.60

75.

Round 52689 to 3 significant figures.

a)

526

b)

527

c)

52600

d)

52700

76.

Round 1235 to 2 significant figures.

a)

12

b)

1200

c)

1200.

d)

1200.00

77.

Round 0.00258954 to 4 significant figures.

a)

0.0025

b)

0.002589

c)

0.002580

d)

0.002590

78.

Round 1047.78 to three sig figs

a)

104

b)

105

c)

1050

d)

1050.00

79.

Round 1235 to 2 significant figures.

a)

12

b)

1200

c)

1200.

d)

1200.00

80.

Round the following value to one significant figure...

8291

a)

8000

b)

9000

c)

7000

d)

8300

81.

1. How many significant figures does the following number have: 0.998005

a)

a. 9

b)

b. 6

c)

c. 10

d)

d. 5

82.

What is 7.555 rounded to two significant figures.

a)

a. 7.6

b)

b. 7.5

c)

c. 70

d)

d. 76

83.

Round 0.010229 to four sig figs

a)

a. 0.0103

b)

b. 0.0102

c)

c. 1022

d)

d. 0.01023

84.

What is 3.5175 rounded to then 2 significant figures?

(a)

85.

A bag of flour has a mass of 1500 g (to the nearest 10 g). Find the maximum mass of 10 bags of flour.

(a)

86.

A piece of A4 paper is 21.1 cm by 29.7 cm measured to the nearest 0.1cm. What is the upper bound of its area, in square centimeters, correct to 1 dp ?

(a)

87.

A = 34 cm to the nearest cm. B = 11.2 cm to 1 decimal place. C = 200 cm to 1 significant figure. Calculate the upper bound of C:B (2 dp)

(a)

88.

Express the following sum with the proper number of significant figures:

35.7 miles + 634.38 miles + 0.97 miles = ?

(a)

89.

Express the following product with the proper number of significant figures:

27 feet * 13.45 feet = ?

(a)

IGCSE significant figures

Total questions: 89

Worksheet time: 1hrs 18mins

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