问题
解答题
78+27-22+53=(78+22)-(27+53)______.(判断对错)
答案
78+27-22+53,
=105-22+53,
=83+53,
=136;
(78+22)-(27+53),
=100-80,
=20;
136≠20;
故答案为:×.
78+27-22+53=(78+22)-(27+53)______.(判断对错)
78+27-22+53,
=105-22+53,
=83+53,
=136;
(78+22)-(27+53),
=100-80,
=20;
136≠20;
故答案为:×.