2.4 Significant Figures in Calculations

Significant Figure Review

Multiple Choice

How many significant figures are in 7.8890?

• 3

• 4

• 5

• 6

Multiple Choice

How many significant figures are in 0.000785?

• 3

• 4

• 5

• 6

Multiple Choice

How many significant figures are in 10.800?

• 3

• 4

• 5

• 6

Multiple Choice

Round the answer to give the correct number of digits:

235.05+19.6+2=

• 257

• 256.7

• 256.65

Multiple Choice

Round the answer to give the correct number of digits:

58.925 - 18.2=

• 40.725

• 40.73

• 40.7

Multiple Choice

Give an answer with correct number of significant figures to:

4.311/0.07

• 61.59

• 61.6

• 62

• 60

Multiple Choice

Give an answer with correct number of significant figures to:

(2.54 x 0.0028) / (0.0105 x 0.060)

• 11.289

• 11.29

• 11.3

• 11

Multiple Choice

Give an answer with correct number of significant figures to:

2.19 x 4.2

• 9

• 9.2

• 9.198