Wednesday, 11 December 2013

W.A.L.T add and subtract decimals, W.A.L.T use tidy numbers and W.A.L.T use a subtraction algorithm.





Tidy numbers 

552 + ? = 734

552+8 =560

560+40=600

600+134=734

so

552 + 182  = 734



Subtraction


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