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Wednesday 16 November 2016

Maths stratagies

At maths time whaea Kat gave us really hard questions and we had to show our working this is mine.
3 x 59 = 177               99 x 2 = 198
3 x 10 = 30                 90 x 2 = 180
30 x 20 = 60               9 x 2 = 18
30 x 30 = 90               180 + 18 = 198
90 + 60 = 150
3 x 9 = 27
27 + 150 =
27 - 7 = 20
150 + 20 = 170
170 + 7 = 177

1 comment:

  1. That looks like a lot of working.How long did it take to come up with all of them? Trae Rm11

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