(1)1375-375÷15×18= (2)40.5÷0.81-16×0.24= (3)2/5×25×5/6×4= (4)12×(1/4+1/6+1/3)=(5)(3/10×5/6+3/10)÷9/4= 能简便运算就简便运算列式计算(1)2.63与2.37的和除以0.25,所得的商比25少多少?(2)1/5

来源:学生作业帮助网 编辑:六六作业网 时间:2024/11/26 19:30:37
(1)1375-375÷15×18=(2)40.5÷0.81-16×0.24=(3)2/5×25×5/6×4=(4)12×(1/4+1/6+1/3)=(5)(3/10×5/6+3/10)÷9/4=能简

(1)1375-375÷15×18= (2)40.5÷0.81-16×0.24= (3)2/5×25×5/6×4= (4)12×(1/4+1/6+1/3)=(5)(3/10×5/6+3/10)÷9/4= 能简便运算就简便运算列式计算(1)2.63与2.37的和除以0.25,所得的商比25少多少?(2)1/5
(1)1375-375÷15×18= (2)40.5÷0.81-16×0.24= (3)2/5×25×5/6×4= (4)12×(1/4+1/6+1/3)=
(5)(3/10×5/6+3/10)÷9/4= 能简便运算就简便运算
列式计算
(1)2.63与2.37的和除以0.25,所得的商比25少多少?
(2)1/5与6的倒数之和,除以5/6与3/8的差,商是多少?

(1)1375-375÷15×18= (2)40.5÷0.81-16×0.24= (3)2/5×25×5/6×4= (4)12×(1/4+1/6+1/3)=(5)(3/10×5/6+3/10)÷9/4= 能简便运算就简便运算列式计算(1)2.63与2.37的和除以0.25,所得的商比25少多少?(2)1/5
一、能简便运算就简便运算.
(1)1375-375÷15×18
=100×18÷15
=120
(2)40.5÷0.81-16×0.24
=50-3.84
=46.16
(3)2/5×25×5/6×4
=(2/5×25)×(5/6×4)
=10×10/3
=100/3
(4)12×(1/4+1/6+1/3)
=12×1/4+12×1/6+12×1/3
=3+2+4
=9
(5)(3/10×5/6+3/10)÷9/4
=(1/4+3/10)÷9/4
=1/4×4/9+3/10×4/9
= 1/9+2/15
=11/45
二、列式计算.
(1)2.63与2.37的和除以0.25,所得的商比25少多少?
25-(2.63+2.37)÷0.25=5
(2)1/5与6的倒数之和,除以5/6与3/8的差,商是多少?
(1/5+1/6)÷(5/6-3/8)= 189/120