Maths :D

BIDMAS

100

6 + 3 x 2

12

200

(8-2)x3+4

22

300

12÷(3×2)+5²

27

400

(18−6)÷3+2³×(4−1)

28

500

[(6+2)²÷4]×(9−3)−5² 

71

Percentage

100

Find 10% of 60

6

200

Find 25% of 80.

20

300

Find 15% of 200

30

400

A laptop costs £600 and is reduced by 20% in a sale.
What is the sale price?

£480

500

A jacket costs £80. It increases in price by 15%, then decreases by 10%.
Find the final price.

£82.80

Algebra

100

Simplify:
3x+5x

8x

200

Solve for x:
2x+7=15

4

300

Solve for x:
5x−9=16

5

400

Solve for x:
3(x−4)=2x+5

17

500

Solve for x:
2(x+3)−(x−4)=3(x−2)

8

Ratio

100

Simplify the ratio:

12:8

3:2

200

Split £70 in the ratio 3:4. How much does each part get?

£30 and £40

300

A mixture has milk and water in the ratio 5:2. If there are 14 litres of water, how much milk is there?

35L milk

400

If x:y=3:5 and y=20, find x.

x=12

500

Three friends share money in the ratio 2:3:5. They have £200 in total.

• How much does each friend get?

£40, £60 and £100

Factors and multiples

100

List all factors of 12.

1,2,3,4,6,12

200

List the first 5 multiples of 7.

7, 14, 21, 28, 35

300

Find the prime factors of 36.

2 × 2 × 3 × 3  

400

Find the HCF of 24 and 36.

12

500

Find the LCM of 8 and 12.

24