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99x22+33x34简便脱式计算

33×3×22+33×34 =33×(66+34) =33×100 =3300

99x22+33x34 =(99/3)x(3x22)+33x34 =33x66+33x34 =33x(66+34) =33x100 =3300

99X23十23用简便运算用脱式计算 =23x(99+1) =23x100 =2300

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