Question

3 7×39+13×6 7-13 7等于多少？

Answer 1

等于2177，先算乘法得出：1443+871-137，再算加法得出：2314-137，最算减法得出：2177

Answer 2

答，原式＝13×3x37＋13×67-137＝13x（111-67）一137＝13x44一137＝572-137＝435

Answer 3

37×39+13×67-137
=37×3×13+13×67-137
=13×(111+67)-137
=13×178-137
=2314-137
=2177

Answer 4

37ⅹ39+13ⅹ67一137=2177
=1443+871一137
=2177

Answer 5

37×39=1443
13×67=871
37×39+13×67=2314
37×39+13×67-137=2314-137=2177