-2.5+(-1/5) 0.4-(-1/4)+1/6 1/3-(-5/6)+2/3 1/3+(-1/5)+1+2/3 27-18+(-7)-32 0.5+(-1/4)-(2.75)+1/2

来源：学生作业帮助网 编辑：六六作业网 时间：2024/12/18 20:06:14
-2.5+(-1/5)0.4-(-1/4)+1/61/3-(-5/6)+2/31/3+(-1/5)+1+2/327-18+(-7)-320.5+(-1/4)-(2.75)+1/2-2.5+(-1/5)

-2.5+(-1/5) 0.4-(-1/4)+1/6 1/3-(-5/6)+2/3 1/3+(-1/5)+1+2/3 27-18+(-7)-32 0.5+(-1/4)-(2.75)+1/2
-2.5+(-1/5) 0.4-(-1/4)+1/6 1/3-(-5/6)+2/3 1/3+(-1/5)+1+2/3 27-18+(-7)-32 0.5+(-1/4)-(2.75)+1/2

-2.5+(-1/5) 0.4-(-1/4)+1/6 1/3-(-5/6)+2/3 1/3+(-1/5)+1+2/3 27-18+(-7)-32 0.5+(-1/4)-(2.75)+1/2
-2.5+(-1/5)
=-2.5-0.2
=-2.7
0.4-(-1/4)+1/6
=2/5+1/4+1/6
=24/60+15/60+10/60
=49/60
1/3-(-5/6)+2/3
=(1/3+2/3)-(-5/6)
=1+5/6
=11/6
1/3+(-1/5)+1+2/3
=(1/3+2/3)+(1-1/5)
=1+4/5
=9/5
27-18+(-7)-32
=27-(18+7+32)
=27-47
=-30
0.5+(-1/4)-(2.75)+1/2
=1/2-1/4-2.75+1/2
=(1/2+1/2)-(0.25+2.75)
=1-3
=-2

找规律 6.25 2.5 1 0.4 ( ) ( ) 找规律 2.5 1 0.4 ( ) ( ) 0.256 -1的5次幂-【（-0.4）*（-2.5）】的5次幂 简算：1除以2.5+2.5乘0.4-1.4 、找规律,再填空：1/2 ,0.2 ,2.5 ,0.4 ,9/2,3/5,( ),( ). 2.5*3/7*0.4*2又1/5怎么简算 2.5与0.4的积乘以2.5除0.4的商,积是多少?2.5×0.4×2.5÷0.4=1×6.25=6.25 24除以6等于0.4 6除以2.4等于2.5 2.5*0.4等于1 0.4乘以2.5等于1 所以0.4和2.5互为倒数这句话对吗? 1、解比例.X：40＝2.5：4 1 14 ：X＝0.4：8 X3.5＝ 40. 0.4*2.5=1 可以说互为倒数吗 为什么 原因 0.2分之x+3-0.4x-1=-2.5 0.2分之0.1x+0.3+2.5=0.4x-1 (x+3)/2-(0.4x-1)/0.5=-2.5 根据运算定律填空【1】0.4×【】×2.5=12×【】×【】 按规律填数2.5,1,0.4,( )0.064,( ) 按规律填数 2.5 1 0.4 ( ) ( ) 0.0256 （能简算的要用简便方法计算） 1÷2.5+2.5*0.4+1简便