Free Printable Operations with Sig Figs, Estimation, and Order of Magnitude

1.

3.05 + 0.013

a)

3.063

b)

3.06

c)

3.1

d)

3

2.

432.521 + 3.50

a)

436.021

b)

436.02

c)

436.0

d)

436

3.

100 + 30.6

a)

130.6

b)

131

c)

130

d)

100

4.

340.123 - 63.02

a)

277.103

b)

277.10

c)

277.1

d)

277

5.

3.004 - 2.4802

a)

0.5238

b)

0.523

c)

0.524

d)

0.52

6.

2.40 - 0.004

a)

2.396

b)

2.39

c)

2.40

d)

2.4

7.

5.9 x 6.01

a)

35.459

b)

35.46

c)

35.5

d)

35

8.

7.8 x 5.501

a)

42.9078

b)

42.908

c)

42.91

d)

42.9

e)

42

9.

5.40 x 7.90

a)

42.66

b)

42.7

c)

43

d)

40

10.

2.1/5.1

a)

0.4118

b)

0.412

c)

0.41

d)

0.40

11.

0.9/2.3

a)

0.391

b)

0.39

c)

0.40

d)

0.4

12.

0.06x 6.28

a)

0.3768

b)

0.377

c)

0.38

d)

0.4

13.

7.15/0.10

a)

71.5

b)

72

c)

70

d)

71.50

14.

3.32 x 0.34

a)

1.1288

b)

1.129

c)

1.13

d)

1.1

15.

1.2279 + 2.444 + 3.33

a)

7.0019

b)

7.002

c)

7.00

d)

7.0

16.

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

17.

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

18.

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

19.

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

20.

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

21.

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

22.

Calculate 12.34 + 1.234 + 0.1234

a)

13.6974

b)

13.697

c)

13.70

d)

13.7

23.

Calculate 12.34 × 1.234 × 0.1234

a)

1.87908

b)

1.879

c)

1.9

d)

1.8790809

24.

How many significant figures are in the number? 4.06 x 10^-5 m

a)

3

b)

7

c)

5

d)

unknown

25.

Multiply (2.45 x 10⁸) x (8.78 x 10⁶) and express in scientific notations.

a)

2.15 x 10¹⁵

b)

2.15 x 10¹⁴

c)

2.10 x 10¹⁴

d)

2.10 x 10¹⁵

26.

Divide (7.78 x 10 ^8) / (9.67 x 10 ^-9) and express in scientific notations.

a)

8 x 10 ^16

b)

7 x 10 ^15

c)

8 x 10 ^15

d)

7 x 10 ^16

27.

Calculate the expression below and give your answer with the correct number of significant figures. Then, show it in scientific notation. (Tip: after the addition, round off following the correct number of SF. Then, convert it to scientific notation without changing the # of SF.)

2.45\times10^4+45.689\times10^4

a)

$48.139\times10^4$

b)

$4.814\times10^5$

c)

$4.81\times10^5$

d)

$48.14\times10^4$

28.

Calculate the expression below and give your answer with the correct number of significant figures. Then, show it in scientific notation. (Tip: after the addition, round off following the correct number of SF. Then, convert it to scientific notation without changing the # of SF.)

2.32+0.2\times10^3+43.1\times10^2

a)

$4.5\times10^3$

b)

$45\times10^2$

c)

$45.1232\times10^2$

d)

$4.51232\times10^3$

29.

State the order of magnitude of the following: 0.000656

a)

10 ^-4

b)

10 ^-3

c)

10 ^-2

d)

10 ^-1

30.

State the order of magnitude of the following: 539

a)

600

b)

500

c)

10 ³

d)

10 ²

31.

A pile of sand has a width that ranges from 38 m to 41 m and a length that is approximately 125 m. If the depth varies from 8.8 m to 9.1 m, what is the order of magnitude of the volume ?

a)

10 ⁴

b)

10 ³

c)

10 ²

d)

10 ¹

32.

Solve and state the order of magnitude in SI unit:

81 nm + 96 cm + 21 pm + 148 mm

a)

10 ⁴

b)

10 ³

c)

10 ²

d)

10 ¹

33.

Which unit of quantity presents the same value as the following fundamental units: kg m² s^-3 A^-1

a)

Joule

b)

Watt

c)

Volt

d)

Ohm

34.

A number rounded to the nearest power of 10 is called:

a)

Estimation

b)

Orders of magnitude

c)

Metric multipliers

d)

Prefixes

35.

What is the prefix (metric multiplier) for x10⁶?

a)

Giga

b)

Mega

c)

Tera

d)

Deca

36.

Which of the following is NOT a fundamental unit?

a)

second

b)

Kelvin

c)

mole

d)

Joule

37.

Which is the correct symbol of prefix of 10 ^-12?

a)

f

b)

p

c)

G

d)

M

38.

The diameter of a cylindrical metal rod is measured using a micrometer screw gauge. The diagram shows an enlargement of the scale on the micrometer screw gauge when taking the measurement.
What is the cross-sectional area of the rod?

a)

3.81mm²

b)

11.4mm²

c)

22.8mm²

d)

45.6mm²

39.

The diameter of a proton (1.72 x 10^-15m) is of the order of magnitude of

a)

10^-12m

b)

10^-15m

c)

10^-18m

d)

10^-21m

40.

The number of heartbeats a person at rest in one hour (4,800 times per hour), to the nearest order of magnitude is:

a)

10¹

b)

10²

c)

10³

d)

10⁵

Operations with Sig Figs, Estimation, and Order of Magnitude

Total questions: 40

Worksheet time: 3hrs 20mins

Similar Resources on Wayground