问题
解答题
1.5×205=1.5×(200+5)=300+5.______.
答案
1.5×205,
=1.5×(200+5),
=1.5×200+1.5×5,
=300+7.5,
=307.5.
故答案为:错误.
1.5×205=1.5×(200+5)=300+5.______.
1.5×205,
=1.5×(200+5),
=1.5×200+1.5×5,
=300+7.5,
=307.5.
故答案为:错误.