don steward
mathematics teaching 10 ~ 16

Thursday 23 November 2017

multiplication problems, times then add

all of these should have three ways of obtaining the result

later questions ask students to find a set of 5 numbers (different to those earlier)
a result of 17 has many sets of five numbers, one set giving 4 ways to obtain the result

a result of 23 also has many sets of five numbers

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