A Chuckle Maths lesson on the place value of three-digit numbers, featuring the Chuckle Brothers. The idea of place value is introduced and we learn how the value of a number changes depending on its ...
19 is only 1 away from 20, so you prefer to start by multiplying 20 times 5, which equals 100. Then we need to take away a squadron of 5, because there are actually only 19 squadrons, not 20. 100 take ...
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