Pages 49 and 49 B of the PhotoCopyMasters (PCM)
doubles and halves.
Page 49 is the doubling machine.
Children need to find either the double or the half of the numbers, accordingly.
Page 49B children have to find doubles, sometimes of big numbers. They have the 'how to' notes on the Maths Study.
ex : Double 35
split into tens and units.
double 30 and double 5
60 + 10 = 70.
Most children know the doubles by rote anyway.
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