先按要求给下面的算式添上括号,然后再计算.(1)先减,再加,最后除.84...
发布网友
发布时间:2024-10-23 21:09
我来回答
共1个回答
热心网友
时间:2024-11-05 05:09
(1)按先减,再加,最后除的运算顺序,把84-24+12÷6添加括号为:
(84-24+12)÷6,
=(60+12)÷6,
=72÷6,
=12;
(2)按先加,再除,最后减的运算顺序,把84-24+12÷6添加括号为:
84-(24+12)÷6,
=84-36÷6,
=84-6,
=78.
热心网友
时间:2024-11-05 05:07
(1)按先减,再加,最后除的运算顺序,把84-24+12÷6添加括号为:
(84-24+12)÷6,
=(60+12)÷6,
=72÷6,
=12;
(2)按先加,再除,最后减的运算顺序,把84-24+12÷6添加括号为:
84-(24+12)÷6,
=84-36÷6,
=84-6,
=78.