Rounding S.F and D.P

Write correct to 1 significant figure

5049

Write correct to 3 significant figures

0.049549 and 0.0005679

Write correct to 2 decimal place

2.0765

Write correct to 3 significant figure

89 508

• 89 510

• 89 500

• 90 000

• 89 000

The diameter of a human of a hair is given as 0.0185 mm. Write the diameter correct to 2 d.p. ...

• 0.019

• 0.018

• 0.02

• 0.0180

Only ten bottle of a very exclusive and expensive parfume are made. The are sold for the price of $12 721.89 per ounce. Write this price correct to 1 s.f. and 1 d.p ...

Write correct to 3 significant figures

0.5057 and 0.1045

Write correct to 2 decimal places

34.777 and 0.654

Write correct to 3 significant figures

0.0005679 and 299 792 458

The Bohr radius is a physical constant of value 0.000000052917721092 mm. Write the Bohr radius correct to 7 d.p and 7 s.f.

• 0.0000001 and 0.00000005291772

• 0.00000005 and 0.000000052917721

• 0.0000000529177 and 0.00000005291772

• 0.00000005291772 and 0.00000005291772