20,024
600
550 upwards to 649 gives 600
30
- You can do this a few ways. 0.2 x 5 gives 1
- Then you multiply 5 by 6 = 30. So 30 times
- Or you x both numbers by 10 so you remove the decimal.
- Then its how many 2s go into 60
- Bus stop method
- The second approach is better because when you get numbers such as 0.3, the maths becomes more awkward with option 1
£23.95
- £167.65/7
- Remove the decimals to make it 16775 divided by 7
- Then work bus stop
- Then move your answer by 2 decimal places as you multiplied the number inside the bus stop by 100 from 167.75 to 16775
36
8, 12, 16
- Use bus stop method.
- 1590/122 = 13 remainder 4
16
- We know that 7 years ago, H was 4 years old which is 11-7
- Mothers age would be 4 x 12 = 48
- Therefore, 5 years on, would mean H would be 11+5
- So 16 years old
18
- 142 is her answer. Working backwards, 142-14 = 128. Divide by 2. So 64 is what she started with
- She should take 64. Divide by 2. To get 32. Then subtract 14 to give 18
£1.05
- 3A + 5O + 2G = £3.02
- 5A + 7O + 4G = £5.12
- Therefore, 2A + 2O + 2G = £2.10
- 1 of each fruit would therefore cost £1.05
£32
- Working backwards, 25% discount would mean discount on ticket cost was 25/75 * 30/1 = £10
- Full Price Child = £40
- Senior Citizen therefore pays 80/100 * 40/1 = £32
3 metres per minute
- Use Distance/Speed. So this would be 400m/800m per minute = 0.5 seconds
- If the tortoise needs to travel 1.5meters, then it will need to run at 1.5/0.5 seconds = 3
QUESTION 3….After 10 days
