SATs questions (addition and subtraction answers)

Question 1

a) Total number of turbines = 60 + 60 = 120 turbines

b) Not turning = 120 – (56+49) = 15 turbines

Question 2

a) Weight of cardboard = (3.25-2.8)*1000 =  450g

b) Weight of glass = (2.8*0.82) – 920 = 1880g

c) Difference = 1880 – 450 = 1430g

Question 3

a) Cash = 4 x 50p = 200p

    Change = 200 – (50 + 65 + 70) = 200 – 185 = 15p

b) Change = 200 – (70 + 70) = 200 – 140 = 60p

    Yes, she can buy a daffodil bulb

Question 4

a) Already taken part = 80,978 + 72,319 = 153,297

    Evening = 234,869 – 153,297 = 81,572

b) Total = 1,333,874 + 234,869 = 1,568,743

    Rounding to £1,569,000

Question 5

a) Change = £5.00 – £1.39 = £3.61

b) 1.39 + 1.39 = £2.78 to buy 2 trees

c) 5.00 – (1.39 + 1.39 +1.39) = 83p

Question 6

a) Time from Liverpool = 07:10 – 01:20 = 05:50

b) Length of rain = 09:05 – 07.10 = 01:55 or 1hr 55 mins

Question 7

a) 320 + 320 + 320 = £960

b) 1390+1390 = £2780

c) Total to pay = 2780 + 960 = £3740

    Needed = 3740 – 2855 = £885

Question 8

a) Carrot and Cucumber

b) 5 x 23 = 115p

c) Yes. 150-115 = 35p. Can afford one more pack of tomato seed.

Question 9

a) Left to plant after week 1= 1250 – 660 = 590

    Planted in week two = 590 – 40 = 550 planted

b) Total = 870+1250 = 2120 trees

Question 10

a) Spent = 1.75 + 2.10 = £3.85

    Change = 5 – 3.85 = £1.15

b) Adult = 2.10 + 1.10 = £3.20

    2 adults = 3.20+3.20 = £6.40

c) Train tickets = 6.40 + 3.85 = £10.25

    Driving = 10.25 + 1.50 = £11.75

Question 11

a) 2020 = 18 + 20 = 38 vehicles

b) Decreased

c) Bought = 18 -7 = 11 electric vehicles

d) Petrol/diesel: 20 – 14 = 6 cars

     Electric: 18 + 14 = 32 cars

Question 12

a) Change = £20 – (1.50 + 0.7 + 2.66 + 11.99) = 20 – 16.85 = £3.15

b) 5 lollies = 0.7 x 5 = 70p + 70p +70p+70p+70p= 350p

    No, only has money for 4 days.