(+71/4)-(+6.25)-(-17/2)-(+0.75)-89/4
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(+71/4)-(+6.25)-(-17/2)-(+0.75)-89/4(+71/4)-(+6.25)-(-17/2)-(+0.75)-89/4(+71/4)-(+6.25)-(-17/2)-(+0.
(+71/4)-(+6.25)-(-17/2)-(+0.75)-89/4
(+71/4)-(+6.25)-(-17/2)-(+0.75)-89/4
(+71/4)-(+6.25)-(-17/2)-(+0.75)-89/4
(+71/4)-(+6.25)-(-17/2)-(+0.75)-89/4
=71/4-25/4+17/4-1/4-89/4
=(71-25+17-1-89)/4
=-27/4
原式=71/4-6.25+17/2-0.75-89/4
=17.75-6.25+8.5-0.75-22.25
=-3
(+71/4)-(+6.25)-(-17/2)-(+0.75)-89/4
1、6分之83-(-4分之3)+6分之5-(-12分之7) 2、4分之71-6.25-(﹣2分之17)-0.75-4分之89
4分之6.25=( )分之2.5
(6.25+79*6.25)*0.5简便计算
-5.3-3.2+2.5-|-5.7|-1/2-26/5-1+16/5-4.5-7/3(+71/4)-(+6.25)-(-17/2)+(-0.75)-(+89/4)
数学题-1,1,7,17,71,(),71(49+22)括号里该填什么
数字推理 -1,1,7,17,31,(),71a41b37c49d50
[6.25-7.5×(20%+1/3)】÷5/4
(+3/4)-(+6.25)-(-8 1/2)-(+0.75)-22 1/4=?1
0-(-6)+2-(-13)-(+8)=?13又5/6-(-3/4)+5/6-(-7/12)=?(+17又3/4)-(+6.25)-(-8又1/2)-(+0.75)-22又1/4=?
6.25 2.5 1 ( ) ( )1 4 3 8 ( ) ( ) 71 4 16 ( ) 256 ( )
(1)比17大43的数乘6.25,积是多少?(2)100比80多百分之几?
找规律6.25 2.5 () () 0.16
找规律 6.25 2.5 1 () ()
6.25,2.5,1,(),(),0.064
应用乘法运算定律,把12.5×71×0.8改写成(),计算才简便.A.12.5×0.8×71 B.12.5×4×71×0.2C.(12.5×4)×(71×0.2) C.12.5×71×8÷0.1
(+6又1/4)+(+1/2)+(-6.25)+(+1/2)+(-7/9)+(-5/6)
71又4分之5乘以(-8)简便方法?