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Wednesday, June 25, 2014

Subtraction strategies W8

149 - 36 = 113
283 - 59 = 224
284 - 38 = 246
937 - 37 = 900
746 - 183 =708
183 - 73 = 110
273 - 96 = 177
836 - 124 = 712
2840 - 963 =1187  
273 - 83 =  127
1384 - 92 =9806
84 - 174 =90
9487 - 826 = 7403
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