问题
解答题
脱式计算
|
答案
(1)580-80×5,
=580-400,
=180;
(2)(129+78)×9,
=207×9,
=1863;
(3)(800-187)×5,
=613×5,
=3065;
(4)35×6×9,
=210×9,
=1890;
(5)268+36×4,
=268+144,
=412.
脱式计算
|
(1)580-80×5,
=580-400,
=180;
(2)(129+78)×9,
=207×9,
=1863;
(3)(800-187)×5,
=613×5,
=3065;
(4)35×6×9,
=210×9,
=1890;
(5)268+36×4,
=268+144,
=412.