ISEB Pocket Notes (Key Stage 3)

Question 0

What are the first ten Prime numbers?

Answer 0

2, 3, 5, 7, 11, 13, 17, 19, 23, 29.

Question 1

What is an Integer?

Answer 1

A whole number (positive, negative or zero).

Question 2

What is 6 x 7

Answer 2

42

Question 3

When multiplying by 10 the decimal point moves where

Answer 3

One place to the right

Question 4

When dividing by 10 the decimal point moves where

Answer 4

One place to the left

Question 5

When dividing by 100 the decimal point moves where

Answer 5

Two places to the left

Question 6

When multiplying by 100 the decimal point moves where

Answer 6

Two places to the right

Question 7

y > 3 means what

Answer 7

y is greater than 3

Question 8

a < 5 means what

Answer 8

a is less than 5

Question 9

What is 2 to the power of 3

Answer 9

8 (2 x 2 x 2)

Question 10

What is 37 rounded to the nearest ten

Answer 10

40

Question 11

What is 205 rounded to the nearest ten

Answer 11

210

Question 12

What is 140 rounded to the nearest hundred

Answer 12

100

Question 13

What is 204 rounded to the nearest ten

Answer 13

200

Question 14

What is 3.449 written to one decimal place

Answer 14

3.4

Question 15

What is 3.449 written to two decimal places

Answer 15

3.45

Question 16

To how many SIGNIFICANT FIGURES is 0.6050 written

Answer 16

4

Question 17

When ESTIMATING the result of a calculation, first write each number correct to one SIGNIFICANT FIGURE.
3.81 x 9.15
So ————- becomes what
1.73 + 1.06

Answer 17

2 + 1

Question 18

What is the approximate value of 5.92 x 6.21

Answer 18

36

Question 19

What is the approximate value of 3.42 x 7.09

Answer 19

21

Question 20

Ratios. 
In a class of 7 boys and 8 girls, what is the ratio of boys to girls

Answer 20

7 : 8

Question 21

Ratios. 
In a class of 7 boys and 8 girls, what is the ratio of girls to boys

Answer 21

8 : 7

Question 22

Ratios. 
In a class of 7 boys and 8 girls, what is the ratio of boys to the class

Answer 22

7 : 15