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significant numbers

Total questions: 15

Worksheet time: 10mins

Name
Class
Date
1.

how many significant figures does 003.209 have

a)

7

b)

3

c)

4

d)

6

2.

what is the first rule of significant figures

a)

Any non-zeros numbers are significant numbers

b)

any zeros before a non-zero number are also significant number

c)

any zeros in-between 2 non-zeros are significant numbers

d)

non of the above

3.

how many significant numbers are in 0.1001

a)

5

b)

2

c)

4

d)

3

4.

how many significant numbers are in 0.138009

a)

6

b)

3

c)

5

d)

2

5.

700.000 has 1 significant figure

a)

true

b)

false

6.

when does a zero count as a significant number

a)

both

b)

when its between 2 non zero numbers

c)

in front of the non zero umber

d)

none

7.

00.00987 has how many significant numbers

a)

6

b)

3

c)

5

d)

7

8.

what way do you move if the decimal if it absent

a)

right

b)

up

c)

left

d)

down

9.

what way do you move when the decimal is present

a)

left

b)

down

c)

up

d)

right

10.

what is the third rule of significant figures

a)

zeros in front of a decimal count as a number

b)

Any zeros before non-zero number are not significant figures

c)

none

d)

any zeros after a decimal are significant number

11.

what is the 4th rule of significant figures

a)

zeros after a non zero number before the decimal aren't significant

b)

there is no rule 4

c)

Zeros after non-zeros in a number with a decimal point ARE significant figures

d)

the same as rule number 1

12.

which way do i move the decimal for (4.09807)

a)

left

b)

right

c)

up

d)

down

13.

which way do i go for (450)

a)

up

b)

side

c)

right

d)

left

14.

when do you round the answer for sig. figs.

a)

add

b)

subtract

c)

multiply

d)

divide

e)

all of the above

15.

how do you find out how many spaces you need to move the decimal

a)

look at the least amount of sig figs

b)

look at the big amount of sig figs