Year 7 Revision - Term 2

Question 1

How do you work out the median?

Answer 1

Arrange all the numbers in order (even if the same number) and select the middle number.

Question 2

What would be the median for the following numbers? 3, 6, 7, 10, 10, 12

Answer 2

8.5 - Show how you worked this out!

Question 3

How do you work out the range?

Answer 3

To work out the range you take the lowest number from the highest number.

Question 4

What is the mode?

Answer 4

The mode is the most frequent number

Question 5

Give an example of writing in Standard Form!

Answer 5

10³

Question 6

How would you convert 600 000 to Standard Form?

Answer 6

6 x 10⁵

Question 7

Give an example of converting Standard Form to an ordinary number!

Question 8

Give an example of converting a number to 1 significant figure!

Answer 8

1510 = 2000

Question 9

Give an example of converting a number to 2 significant figures!

Answer 9

1785 = 1800

Question 10

How many zeros are in a million?

Answer 10

6

Question 11

How many zeros are in a billion?

Answer 11

9

Question 12

What is half a million?

Answer 12

500 000

Question 13

What is a quarter of a million?

Answer 13

250 000

Question 14

What is three quarters of a million?

Answer 14

750 000

Question 15

Round 60321 to 1 significant figure!

Answer 15

60000

Question 16

Round 60321 to 2 significant figures

Answer 16

61000

Question 17

Show an example of a rounding a decimal to 1 signigicant figure eg. 1.54

Answer 17

1.54 = 2

Question 18

Show an example of a rounding a decimal to 2 signigicant figures eg. 1.54

Answer 18

1.54 = 1.5

Question 19

What type of number do you get if you multiply a positive number with a negative number? Give an example.

Answer 19

Negative

Question 20

What type of number do you get if you multiply a positive number with a positive number? Give an example.

Answer 20

Positive

Question 21

What type of number do you get if you multiply a negative number with a negative number? Give an example.

Answer 21

Positive

Question 22

What type of number do you get if you divide a positive number with a positive number? Give an example.

Answer 22

Positive

Question 23

What type of number do you get if you divide a positive number with a negative number? Give an example.

Answer 23

Negative

Question 24

What type of number do you get if you divide a negative number with a negative number? Give an example.

Answer 24

Positive

Question 25

How do you find area of a triangle?

Answer 25

base x height / 2

Question 26

How do you find the area of parallelogram?