Free Printable CHAPTER 2 STANDARD FORM (PBD)

1.

$7.489\times10^{-6}=$

a)

0.000007489

b)

0.00007489

c)

7 489 000

d)

7 489 000 000

2.

Express 5630000 in standard form.

a)

$5.63\times10^{-6}$

b)

$5.63\times10^{-4}$

c)

$5.63\times10^4$

d)

$5.63\times10^6$

3.

Which of the following if round off to three significant figures is not 2.02?

a)

2.024

b)

2.018

c)

2.025

d)

2.017

4.

Round off 0.05893 correct to two significant figures.

a)

0.05

b)

0.06

c)

0.058

d)

0.059

5.

Significant figures for 1.3001 is

a)

4

b)

5

c)

6

6.

Significant figures for 0.031230 is

a)

4

b)

5

c)

6

7.

How many significant figures does the following number have: 231

a)

2

b)

3

c)

Whole number is not possible

d)

None of the above

8.

$3860000\ is\ written\ as\ 3.86\times10^m\ in\ s\tan dard\ form.\$ Find the value of m.

a)

3

b)

5

c)

6

d)

7

9.

Find the standard form value of (2.5 x $10^4$ ) x ( 6 x $10^{-9}$ )

a)

$15\ \times10^{-5}$

b)

$15\ \times10^{-4}$

c)

$1.5\ \times\ 10^{-4}$

d)

$1.5\ \times\ 10^{-6}$

10.

Write in standard form
6 x 10¹² ÷ 3 x 10⁴

a)

18 x 10⁸

b)

2 x 10³

c)

2 x 10¹⁶

d)

2 x 10⁸

11.

Given aⁿ. What is a?

a)

index

b)

base

c)

power

d)

root

12.

4 x 4 x 4 x 4 in index form is

a)

4⁴

b)

256

c)

256⁴

d)

4ⁿ

13.

Convert 64 into number in index form

a)

2⁶

b)

8²

c)

4³

d)

3⁴

14.

Which is greater, 2654⁰ or 5⁰?

a)

2654⁰

b)

5⁰

c)

They are the same

d)

Zero is greater

15.

What is 6.7 × 10⁴ written

as an ordinary number?

a)

67000

b)

6700

c)

670000

d)

0.00067

16.

Express 4785.2 in standard form.

a)

4.7852 x 10²

b)

4.7852 x 10^-2

c)

4.7852 x 10³

d)

4.7852 x 10^-3

17.

What is 0.00051

written in standard form?

a)

5.1 × 10^-4

b)

51 × 10^-4

c)

5.1 × 10^-5

18.

6 millimeters has __________ microns (micrometers)

a)

600

b)

6 000

c)

6 000 000

d)

60

19.

What is standard form?

a)

Writing numbers as a

calculator writes numbers

b)

A system of writing

very large or very small numbers

c)

Writing numbers as decimals

20.

Which number is the exponent? $7.5\ x\ 10^{-5}$

a)

-5

b)

5

c)

10

d)

7.5

CHAPTER 2 STANDARD FORM (PBD)

Total questions: 20

Worksheet time: 10mins

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