General Maths Knowledge - Year 8 Autumn Term

Calculate 2574 ÷ 11

Calculate 18,473 ÷ 49

Calculate 9129 ÷ 68.

Give your answer as a mixed number.

What is the remainder when 3810 is divided by 47?

Lucy buys a car for £7,500.

She pays £4,080 up front and splits the rest of the cost over 36 months.

What is her monthly payment?

Answer explanation

Total cost - deposit =

7500 - 4080 = 3420

3420 ÷ 36 =

£95

The ratio of cups of flour to cups of water in a pizza dough recipe

is 9 : 4.

A pizza restaurant makes a large quantity of dough, using 36 cups of flour.

How many cups of water should they use?

Answer explanation

9 parts flour to 4 parts water

36 cups of flour = 9 parts

36 ÷ 9 = 4

4 x 4 = 16

16 cups of water

The ratio of men:women working in a company is 3 : 5.

What proportion of the employees are women?

Answer explanation

Answer explanation

Apples count for 5 parts of 12.

Other fruit = 12 - 5 = 7

Ratio of apples : other fruit = 5 : 7

Three chairs cost £51.

Five chairs and one table cost £120.

How much does the table cost?

Answer explanation

3 x chairs = 51

51 ÷ 3 = 17

5 x chairs = 5 x 17 = 85

85 + table = 120

Table = 120 - 85

Table = £35

Five packets of crisps cost £3.

Three packets of crisps and a sandwich cost £4.45.

How much would it be to buy you and your friend a sandwich and a packet of crisps each?

Answer explanation

5 x crisps = 3.00

crisps = 3.00 ÷ 5 = 0.60

3 x crisps + sandwich = 4.45

3 x 0.60 = 1.80

1.80 + sandwich = 4.45

sandwich = 4.45 - 1.80 = 2.65

sandwich + crisps = 2.65 + 0.60 = 3.25

x 2 = £6.50