早教吧 育儿知识 作业答案 考试题库 百科 知识分享

脱式计算.8.5×5.67-7.5×5.67;3.6÷(0.2+0.3);4.5-1.14÷1.5-1.24;6.2+3.5×25×4.

题目详情
脱式计算.
8.5×5.67-7.5×5.67;           3.6÷(0.2+0.3);
4.5-1.14÷1.5-1.24;            6.2+3.5×25×4.
▼优质解答
答案和解析
(1)8.5×5.67-7.5×5.67
=(8.5-7.5)×5.67
=1×5.67
=5.67;
(2)3.6÷(0.2+0.3)
=3.6÷0.5
=7.2;
(3)4.5-1.14÷1.5-1.24
=4.5-0.76-1.24
=4.5-(0.76+1.24)
=4.5-2
=2.5;
(4)6.2+3.5×25×4
=6.2+3.5×(25×4)
=6.2+3.5×100
=6.2+350
=356.2.