Standard Form Exam Questions (Page 2 of 2) in pdf

Standard Form Exam Questions Page 2

Question 6.



A publisher prints

copies of a magazine. Each magazine consists of 18 sheets of paper.

. 1

(a) Calculate the number of sheets of paper needed to print all the magazines.

Give your answer in standard form.

[2]

To make the magazine, the sheets of paper are folded as shown.

(b) The height if a pile of magazines is 79.1 cm. The pile contains 232 magazines.

Calculate, in centimetres, the thickness of one sheet of paper.

[3]

Question 7.

1 

4 

A rectangular picture measures

cm by

cm.

2 .

3 .

Calculate the following, giving your answer in standard form. Remember to state the units with your answers.

(a) The perimeter of the picture

[2]

(b) The area of the picture

[3]

Question 8.



It is estimated that a water tank contains about

drops of rain water.

. 1



By taking samples, it is further estimated that the water contains about

microbes.

. 5

Assuming an even distribution, give an estimate of the number of microbes per drop of rain water.

Give your answer in standard form, correct to 3 significant figures.

[4]

Standard form – used to write very large and very small numbers in an easier way.

You can use your calculator to enter standard form numbers using the EXP button.

5.3 x 10

would be entered as 5.3 EXP 6. Remember to use brackets when doing calculations!

Standard Form Exam Questions Page 2