问题
解答题
|
答案
(1)(34+19)×(252÷12),
=53×21,
=1113;
(2)300-156+244,
=144+244,
=388;
(3)6×58-(275+38),
=348-313,
=35;
(4)140-40×2+28,
=140-80+28,
=60+28,
=88.
|
(1)(34+19)×(252÷12),
=53×21,
=1113;
(2)300-156+244,
=144+244,
=388;
(3)6×58-(275+38),
=348-313,
=35;
(4)140-40×2+28,
=140-80+28,
=60+28,
=88.