Maths homework – Due Friday 12th December
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Group 1: SHOW YOUR WORKING
Find the percentage and then take it off the original price.
- A game was £40. There’s a 10% sale. What is the price of the game now?
- A book was £25. There is a 20% sale. What is the price of the books now?
- A toy was £60. There is a 15% sale. What is the price of the toy now?
- A tshirt was £85. There is a 15% sale. What is the price now?
- A jacket was £62. There is a 12% sale. What is the price now?
Group 2: SHOW YOUR WORKING
Find the percentage and then take it off the original price.
- A game was £40. There’s a 10% sale. What is the price of the game now?
- A book was £20. There is a 20% sale. What is the price of the books now?
- A toy was £60. There is a 15% sale. What is the price of the toy now?
- A tshirt was £80. There is a 15% sale. What is the price now?
- A jacket was £60. There is a 12% sale. What is the price now?
Group 3: SHOW YOUR WORKING (hint: divide by 10)
- Find 10% of 20
- Find 10% of 50
- Find 10% of 80
- Find 10% of 150
- Find 10% of 25 (you will need a decimal!)
- Find 10% of 45
(1)£36.00.
(2)£16.00.
(3)£51.00.
(4)£78.00.
(5)£07.02.
1. A game was £40. There’s a 10% sale. What is the price of the game now?
£40 divided by 10 is £4
£40 minus £4 is £36
2.A book cost £25. There was a 20% sale. What is the price of the book now?
£25 divided by 5 is 5
£25 minus 35 is £20
3. A toy was £60. There was a 15% sale. How much was the toy now?
£60 divided by 10 is £6
£6 divided by 2 is £3
£3 plus £6 is £9
£60 minus £9 is £51
4. A shirt was £85. There was a 15% sale. How much was the shirt now?
£85 divided by 10 is £8.50
£8.50 divided by 2 is £4.25
£8.50 plus £4.25 is £12.75
£85 minus £12.75 is £72.25
5.A jacket was £62. There is a 12% sale. What is the price now?
£62 divided by 10 is £6.20
£6.20 divided by 10 is 62p
62p multiplyed by 2 is £1.24
£6.20 plus £1.24 is £7.44
£62 minus £7.44 is £54.56
1. 40 divided by 10=4 40-4 =36. The game is now 36 pounds.
2. 25 divided by 10=2.5. Times by 2=5 25 -5=20. The books are now 20 pounds.
3. 60 divided by 10=6 + 60 divided by 10=6 and half it which is 3. 6+3= 9. 60 -9=51. The toy is now 51 pounds.
4.85 divided by 10 =8.5+85 divided by 10 =8.5 and then half it which is 4.25. 8.5 + 4.25=12.3. 85-12.3=73.7. The t-shirt is now 73 pounds and 70 pence.
5.62 divided by 10=6.2.60 divided by 100=0.62 times 2= 1.4. 6.2 + 1.4= 7.8.62-7.8=54.5, The jacket is now 54 pounds and 50 pence.
Group 1
1. £36.00
2. £20.00
3. £51.00
4. £80.75
5. £54.56
Group 2
1. £16.00
(All of the other questions are the same as Group 1)
Group 3
1. £2.00
2. £5.00
3. £8.00
4. £15.00
5. £2.50
6. £4.50
1. 10% off £40= £36 40 divided by 10=4 40-4=36 The game is now £36.
2. 20% off £25=£20 25 divided by 10= 5 2.5 x 2=5 £25-5=£20 The book is now £20.
3. 15% off £60=£ 60 divided by 10=6 100 divided by 60=0.6 x 5 =3 6+3=9 60-9=51
The toy now is £51.
4. 15% off £85=67. 25 85 divided by 10=8.5 100 divided by 85= 0.85 x 5=4.25 8.5+4.25=12.75 80-12.75=67.25 The T shirt is now £67.25
5. 12% off £62= 62 divided by 10=6.2 100 divided by 62= 0.62 x 2=1.24 6.2+1.24=7.44
62-7.44=54.56 The jacket is now £54.56.
1. 10% of 40 = 4 £40 – £4 = £36
2. 10% of 25 =2.5 10% of 25= 2.5 2.5 + 2.5=5 £25 -£5 =£20
3. 10% of 60 = 6 1% of 60 = 0.6 x 5= 3 6+3=9 £60 – £9= £51
4. 10% of 85= 8.5 1% of 85 =0.85 x 5= 4.25 8.5 + 4.25=12.75 85 – 12.75= 72.25
5. 10% of 62=6.2 1% of 62 =0.62 x 2 =1.24 6.2 +1.24=7.44 62 – 7.44 = 54.56
by Jason
1)£40.00÷10=£4.00
2)£25.00÷10=£2.50
£2.50×2=£5.00
3)£60.00÷10=£6.00
£60.00÷100=£0.60
£6.00+£0.60=£6.60
£80.00÷10=8.00
£80.00÷100=£0.80
£8.00+£0.80=£8.80
4)£62.00÷10=£6.20
£62.00÷100=£0.62
£6.20+£0.62=£6.82
1.36
2.16
3.9
4.68
5.
Group 1
1) 10% of £40 = £4. £40 – 4 = £36.00
2) 10 % of 25 = 2.50 so 20% of 25 = 5. £25-5 =£20.00
3) 10% of 60 = 6 6 divided by 2 = 3 6+3 = 9 60-9 =£51.00
4) 10% of 85 = 8.5 8.5 divided by 2 = 4.25 8.50+4.25 = £12.75 85 – 12.75 = £72.75
5) 10% of 62 = 6.2 1% of 62 = 0.62 2% of 62 = 1.24 6.2+1.24 = £7.44 £62.00 – £7.44 = £54.56
Group 2
1) 10% of 40 = 4 £40-£4 = £36
2) 10% of 20 = 2 2×2 = 4 £20-£4 = £16
3) 10% of 50 = 6. 5% is half so = 3. 3+6 = 9 £60 – £9 = £51.00
4) 10% of 80 = 8. 8 divided by 2 = 4. 4+8 = 12. 80-12 =£68
5) 10% of 60 = 6. 1% of 60 = 0.6 2×0.6 = 1.20 6+1.2 = 7.20. £60 – £7.20=£52.80
1}10% of £40=£4.00-£40.00=£36.00
2}10% of £25=£2.50 times by two=£5.00-£25.00=£20.00
3}10% of £60=£6.00 then 5% of £60=£3.00+£6.00=£9.00-£60=£51.00
4}10% of £85=£8.50 then 5% of £85=£4.25+£8.50=£12.75-£85=£73.25
5}10% of £62=£6.20 then 1% of £62=£0.62 then times buy 2 =£1.24+£6.20=£7.44-£62=
10% of 40=4
4-40=36
25% of 20=5
10% of 20=2
10% of 20=2
10% of 20 =2 (half it =1)
5-20=15
15% of 60 =9
10% of 60=6
10% of 60=6 (half it =3)
9-60=51
15% of 85=12.75
10%of 85=8.5
10%of 85=8.5 (half it = 4.25)
12.75-85=73.25
12% of 62=7.6
10% of 62=6.2
1% of 62= 0.62
0.62 x 2=1.4
7.60-62=55.40