问题
解答题
脱式计算
|
答案
(1)28×(46-37),
=28×9,
=252;
(2)56+56×9,
=56×(1+9),
=56×10,
=560;
(3)76+24×5,
=76+120,
=196;
(4)213×3-39,
=639-39,
=600.
脱式计算
|
(1)28×(46-37),
=28×9,
=252;
(2)56+56×9,
=56×(1+9),
=56×10,
=560;
(3)76+24×5,
=76+120,
=196;
(4)213×3-39,
=639-39,
=600.