128 - 500-372 =, 176 - 312-136 = , 462 - 529-67 = , 117 - 147-30 = , 696 - 896-200= , 542 - 489+53 = , 660 - 179+481 = , 425 - 282+143= , 170 - 10 1+69=, 300 - 227+73= ,

Addition and Subtraction

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