问题
解答题
(18×5)+(36÷12)去掉括号后,结果不变.______.(判断对错)
答案
(18×5)+(36÷12),
=90+3,
=93;
18×5+36÷12,
=90+3,
=93;
93=93;计算结果相等.
故答案为:√.
(18×5)+(36÷12)去掉括号后,结果不变.______.(判断对错)
(18×5)+(36÷12),
=90+3,
=93;
18×5+36÷12,
=90+3,
=93;
93=93;计算结果相等.
故答案为:√.