in class we learn easyer ways to do math.i am going to show you an example that our class learnt from Mrs R.
453+675=1128 (sum)
think this:
400+600=1000
1000+70=1070
1070+50=1120
1120+3=1123
1123+5=1128
1128 Is the ANSWER
Monday, March 16, 2009
adding the parts
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