Wednesday, May 11, 2011

Maths

W.A.L.T solve addition problems by going back throgh the tens like...
34-7=27
65-8=57
72-9=63
83-8=75
132-7=125(132-2=130-5)
271-8=263(271-1=270-7)
393-6=387
I solved these problems by (34-7 you-4that=30-3)
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