早教吧 育儿知识 作业答案 考试题库 百科 知识分享

我很聪明,会用简便方法计算.376+28+172+12443000÷8÷12599×38+3825×1048×(29×l25)688-534+112-166156×l0l-156164-83-1726×148-48×26.

题目详情
我很聪明,会用简便方法计算.
376+28+172+124 43000÷8÷125 99×38+38
25×104 8×(29×l25) 688-534+112-166
156×l0l-156 164-83-17 26×148-48×26.

376+28+172+124 43000÷8÷125 99×38+38
25×104 8×(29×l25) 688-534+112-166
156×l0l-156 164-83-17 26×148-48×26.
376+28+172+124 43000÷8÷125 99×38+38376+28+172+12443000÷8÷12599×38+38 25×104 8×(29×l25) 688-534+112-16625×1048×(29×l25)688-534+112-166 156×l0l-156 164-83-17 26×148-48×26.156×l0l-156164-83-1726×148-48×26.
▼优质解答
答案和解析
(1)376+28+172+124,
=(376+124)+(28+172),
=500+200,
=700;

(2)43000÷8÷125,
=43000÷(8×125),
=43000÷1000,
=43;

(3)99×38+38,
=38×(99+1),
=38×100,
=3800;

(4)25×104,
=25×(100+4),
=25×100+25×4,
=2500+100,
=2600;

(5)8×(29×l25),
=8×125×29,
=1000×29,
=29000;

(6)688-534+112-166,
=(688+112)-(534+166),
=800-700,
=100;

(7)156×l0l-156,
=156×(101-1),
=156×100,
=15600;

(8)164-83-17,
=164-(83+17),
=164-100,
=64;

(9)26×148-48×26,
=26×(148-48),
=26×100,
=2600.