问题
解答题
脱式计算.
|
答案
(1)500-271+18,
=229+18,
=247;
(2)1400-28×26,
=1400-728,
=672;
(3)45×27+123,
=1215+123,
=1338.
脱式计算.
|
(1)500-271+18,
=229+18,
=247;
(2)1400-28×26,
=1400-728,
=672;
(3)45×27+123,
=1215+123,
=1338.