(1)31.5-18.54/1.8 (2)1.82/(0.13*0.7) (3)2.7*(3.85-13.*1(4)(2
来源:学生作业帮 编辑:大师作文网作业帮 分类:数学作业 时间:2024/11/17 11:30:22
(1)31.5-18.54/1.8 (2)1.82/(0.13*0.7) (3)2.7*(3.85-13.*1(4)(28.26-15.7)/3.14+2.81.5)快能简算的要简
(1)31.5-18.54/1.8
=31.5-(18+0.54)/1.8
=31.5-18/1.8-0.54/1.8
=31.5-10-0.3
=21.2
(2)1.82/(0.13*0.7)
= 1.82÷0.7÷0.13
=2.6÷0.13
=20
(3)2.7*(3.85-13.*1
=
(4)(28.26-15.7)/3.14+2.81.5)
=
最后俩题再看看
=31.5-(18+0.54)/1.8
=31.5-18/1.8-0.54/1.8
=31.5-10-0.3
=21.2
(2)1.82/(0.13*0.7)
= 1.82÷0.7÷0.13
=2.6÷0.13
=20
(3)2.7*(3.85-13.*1
=
(4)(28.26-15.7)/3.14+2.81.5)
=
最后俩题再看看
(1)31.5-18.54/1.8 (2)1.82/(0.13*0.7) (3)2.7*(3.85-13.*1(4)(2
计算各题,能简算的要简算.(1)31.5-18.54/1.8 (2)1.82/(0.13*0.7) (3)2.7*(3.
31.5-18.54/1.81.82*(0.13*0.7) 简便计算哦
(1) (-4½)-{3 2/5 -[(0.13)-(0.33)]}
1、158-92+42-8 2、58/7-28.5+3.85 3、3.5×1.25+1.25×2.7-3.8÷ 4/5
解方程.(1)1.8+x=5.2 (2)x-2.7=5.6 (3)0.7*x=4.2 (4)x/1.7=2.5
(-1.25)+3.85+(-3又1/4)+(-1/2)+1 .75
能简算要简算 1.8分之5*(4分之3-2分之1) 2.7分之5*9分之4*45
计算:(1) (+2)+(-8) (2) (-8.8)-(+7) (3) (46.45)+(-5.25)+18.54+(
(-1.25)+3.85+(-3有4分之一)+(-2分之1)+1.15
计算题((2.39-0.26+1)2 +(4.78+0.13-1)2)/(2*2.392-3*2.39*0.13-2*0
(1)2*2.39-0.13-1