Ks3 Mathematics Level 4 Answers - Mental Arithmetic Questions Page 9
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20Mental Arithmetic Questions
1. Add 72 and 38.
Try 70 + 30 to give 100, then 2 + 8 to give 10.
Then 100 + 10 to give 110.
KS3 MATHEMATICS
2. Centimetres are a measure of length. What are “Grams”
a measure of?
10 4 10
Mass
Level 4 Answers
Day 5
3. How much is half of £9.50?
£4.75
4. The diagram shows a plan of a room. The scale is 1
centimetres to 2 metres. On the plan the room is 4 cm
long. How long is the room in real life?
4 X 2 = 8
8 metres
5. The pie chart shows how two hundred pupils travel to
school. How many of these pupils walk to school?
Walking is a quarter
of the pie, so a
quarter of 200 gives
50 students
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