A-A+
计算下面各题 能简算的要简算:14+34×138×34×11557×14+34×57(38+
问题详情
参考答案
(1)14+34×13,
=14+14,
=12;
(2)8×34×115=25;
(3)57×14+34×57,
=57×(14+34),
=57×1,
=57;
(4)(38+34+13)×24,
=38×24+34×24+13×24,
=9+18+8,
=35;
(5)3.6+37+6.4+47,
=(3.6+6.4)+(37+47),
=10+1,
=11;
(6)54-(27+14),
=54-14-27,
=1-27,
=57;
(7)47×346,
=(46+1)×346,
=46×346+346,
=3+346,
=3346;
(8)63×5758,
=63×(1-158)
=63-1558,
=615358;
(9)38×25-38,
=38×(25-1),
=38×24,
=9.
考点: