6 boxes contain 54 light bulbs. How many light bulbs are there in one box?
54/6 = 9 light bulbs
200
Largest to smallest
1012, 1200, 1102, 1202, 1121
1202, 1200, 1121, 1102, 1012
200
1/3 + 3/7 = ?/7
4
200
1/3 of 27
9
200
Divide 40kg in the ratio 1:7
1 + 7 = 8
40/8 = 5
5 x 1 = 5
5 x 7 = 35
$8:$35
200
5 identical candles lit at the same time take 60 minutes to burn. How long will 9 candles take?
60 minutes (TRICK QUESTION)
300
Smallest to largest
$1.20, 32p, $0.28, 23p, $0.63
23p, $0.28, 32p, $0.63, $1.20
300
7/8 - 3/8 = ?/8 = ?/2
4 and 1
300
2/3 x 15
10
300
The ratio of men to women attending a concert was 1:3. If 300 men attending, how many women attended?
900 women
300
18 eggs cost $3.60. How much do 10 cost?
3.60/18 = 20p for each egg
20 x 10 = 200p = $2 for 10 eggs
400
Largest to smallest
2.40, 24, 2.6, 0.026, 0.4, 4.02
24, 4.02, 2.6, 2.40, 0.4, 0.026
400
11/12 - 1/6 = 11/12 - ?/12 = ?/12 = ?/4
11/12 - 1/6 = 11/12 - 2/12 = 9/12 = 3/4
400
3/4 x 48
36
400
Divide 50cm in the ratio 3:2
3 + 2 = 5
50/5 = 10
10 x 3 = 30
10 x 2 = 20
30cm:20cm
400
A new battery can run 3 model trains for 8 hours. How long can it run 6 trains?
6/3 = 0.5 (It can run each train half as long)
0.5 x 8 = 4 hours
500
Smallest to largest
57cm, 2.05m, 0.06m, 123cm, 0.9m
0.06m, 57cm, 0.9m, 123cm, 2.05m
500
1/5 + 1/2
1/5 + 1/2 = 2/10 + 5/10 = 7/10
500
Trevor spends one quarter of an hour every day tidying his room. How many hours does he spend tidying his room in 4 weeks?
1/4 x 7 = 1.75, 1.75 x 4 = 7 hours
500
A compost mixture is made from peat and garden waste in the ratio 2:5. If a pile of compost mixture contains 40 litres of peat, how much garden waste does it contain?
100 litres of garden waste
500
It takes 6 brick layers 3 hours to build a wall 100cm high. How long would it take 4 brick layers to build the same wall?
6/4 = 1.5 ( It will take them 1.5 times longer)
1.5 x 3 = 4.5
It will take them 4 and a half hours.