(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:作业帮 时间:2024/07/09 01:39:51
![(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](/uploads/image/z/434150-62-0.jpg?t=%281%291375-375%C3%B715%C3%9718%3D+%EF%BC%882%EF%BC%8940.5%C3%B70.81-16%C3%970.24%3D+%EF%BC%883%292%2F5%C3%9725%C3%975%2F6%C3%974%3D+%EF%BC%884%EF%BC%8912%C3%97%EF%BC%881%2F4%2B1%2F6%2B1%2F3%EF%BC%89%3D%EF%BC%885%EF%BC%89%EF%BC%883%2F10%C3%975%2F6%2B3%2F10%EF%BC%89%C3%B79%2F4%3D++%E8%83%BD%E7%AE%80%E4%BE%BF%E8%BF%90%E7%AE%97%E5%B0%B1%E7%AE%80%E4%BE%BF%E8%BF%90%E7%AE%97%E5%88%97%E5%BC%8F%E8%AE%A1%E7%AE%97%EF%BC%881%EF%BC%892.63%E4%B8%8E2.37%E7%9A%84%E5%92%8C%E9%99%A4%E4%BB%A50.25%2C%E6%89%80%E5%BE%97%E7%9A%84%E5%95%86%E6%AF%9425%E5%B0%91%E5%A4%9A%E5%B0%91%3F%EF%BC%882%EF%BC%891%2F5)
(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