Erins Revision

Question 1

What is the square root of 169?

Answer 1

13

Question 2

What is the cube root of 64?

Answer 2

4

Question 3

What is 288 divided by 12?

Answer 3

24

Question 4

What is 285 divided by 15?

Answer 4

19

Question 5

What is 425 divided by 25?

Answer 5

17

Question 6

How can you simplify ratios easily?

Answer 6

Divide all the numbers by 2 untill at least one can’t go any smaller before going into decimals.

Question 7

The ratio of girls to boys in a class is 4:5.
What fraction of the class are girls?

Answer 7

4/5

Question 8

How do you find the surface area of a rectantangle prism?

Answer 8

You find the area of length x width then width x hight then length x hight and add them together.

Question 9

What is the smallest of these: 0.1, 0.01, 0.05 and 0.95

Answer 9

0.01

Question 10

Which of the 3 pairs are equal?
12.5% and 1/8
30% and 1/3
or 50% and 2/5?

Answer 10

12.5 and 1/8

Question 11

13 x 12?

Answer 11

156

Question 12

4 x 8?

Answer 12

32

Question 13

( 9 x 3 ) + 4?

Answer 13

31

Question 14

8 cubed?

Answer 14

512

Question 15

10: 12 in its simplest form? (no decimals)

Answer 15

5:6

Question 16

what is the formula for circumference?

Answer 16

Pi d

Question 17

5 x 14?

Answer 17

70

Question 18

What is the diameter?

Answer 18

The line crossing through the middle of a circle.

Question 19

What is the radius?

Answer 19

The line that goes to the centre of a circle.

Question 20

What is the area of of a circle?

Answer 20

Pi r squared.