问题
解答题
先说说每道题的运算顺序,再计算
240+(568-36×13)
82×3+3×18×4
45+240÷4×40
46×(18+282)-3800.
答案
(1)240+(568-36×13),
=240+(568-468),
=240+100,
=340;
(2)82×3+3×18×4,
=246+216,
=462;
(3)45+240÷4×40,
=45+60×40,
=45+2400,
=2445;
(4)46×(18+282)-3800,
=46×300-3800,
=13800-3800,
=10000.