8 - 7 =, one, three, five, six, 20 + 5 =, twenty-four, twenty-five, twenty-nine, 9 + 3 =, eleven, twelve, thirteen, ten, 19 + 16 =, thirty-two, thirty-four, thirty-one, thirty-five, 50 - 10 =, thirty, fourty, twenty, ten, 20 + 18 =, thrity-eight, thirty-seven, twenty-eight, eighteen, 18 - 7=, twelve, eleven, thirty, twelv, elev, 2 + 18, thirty, twelve, twenty, 16 + 10 =, thirty-six, twenty-six, twent-six, 20 + 19 =, thirty-nine, nineteen, twenty-nine, nine

Subtraction

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