Significant figures and standard form

• 340000

• 340

• 3400

• 34000

• 5.4 × 10^-4

• 54 × 10⁵

• 5.4 × 10⁵

• 5.4 × 10⁴

• 8.9 × 10^-4

• 0.89 × 10^-4

• 8.9 × 10^-3

• 0.0089 × 10^-3

• 0.8 × 10¹

• 8 × 10^-1

• 0.8 × 10⁰

• 8 × 10¹

State the number of significant number of the following number

• 1 significant figure

• 2 significant figure

• 5 significant figure

• 7 significant figure

Round off 4.028 correct to three significant figures.

• 4.02

• 4.020

• 4.03

• 4.030

Round off 60 835 correct to three significant figures.

• 60 800

• 60 830

• 60 840

• 60 900

Round off each of the following numbers to 2 significant figures

• 47190

• 47000

• 47100

• 47200

Round off the following numbers to 1 significant figure

• 20

• 21

• 2

• 20.7

Round off 0.7683 correct to two significant figures.

• 0.70

• 0.76

• 0.77

• 0.80