Grade 8, igcse, rounding of significant figures

Identify the number of significant figures in 0.00345.

• 3

• 4

• 5

• 2

Round 123.456 to 3 significant figures.

• 130

• 120

• 124

• 123

What is 0.0001234 rounded to 2 significant figures?

• 0.00012

• 0.00013

• 0.0001

• 0.0002

Round 9876 to 2 significant figures.

• 10000

• 9800

• 9500

• 9900

How many significant figures are in 5000?

• 2

• 3

• 1

• 4

Round 0.00789 to 1 significant figure.

• 0.08

• 0.0078

• 0.007

• 0.1

What is 6000 rounded to 2 significant figures?

• 6050

• 5900

• 6100

• 6000

Identify the how many significant figures are in 400.00

• 5

• 4

• 3

• 1

Round 0.000456 to 2 significant figures.

• 0.0004

• 0.00046

• 0.00045

• 0.0005

How many significant figures are in 0.020?

• 4

• 2

• 3

• 5