问题
解答题
用递等式计算
(1)(240+910÷13)×8
(2)430+230×62÷31.
答案
(1)(240+910÷13)×8,
=(240+70)×8,
=310×8,
=2480;
(2)430+230×62÷31,
=430+14260÷31,
=430+460,
=890.
用递等式计算
(1)(240+910÷13)×8
(2)430+230×62÷31.
(1)(240+910÷13)×8,
=(240+70)×8,
=310×8,
=2480;
(2)430+230×62÷31,
=430+14260÷31,
=430+460,
=890.