简算3/4x[(7/15-1/5)/2/3].(58+27)x8+19/27.9.56-4.875-1/8+1.44
简算3/4x[(7/15-1/5)/2/3].(58+27)x8+19/27.9.56-4.875-1/8+1.44
(3/8+1/15)x8+7/15(简算)
(-1/12)x8/15x(-2/3)x(-9/4)怎么计算呀
3x(1/2—5/6—3/4+7/12)x8
(5\8+1\27)X8+19\27
1X8+1=9,12X8+2=98,123x8+3=987,1234x8+4=9876找规律把下面,□填上数字
1x8+1=9,12x8+2=98,123x8+3=987,1234x8+4=9876照样子继续
观察下列式子:3²-1²=8=1x8,5²-3²=16=2x8 ,7²
(8分之3+27分之1)x8+27分之19=?
1x8+1 =9 12x8+2=98 123x8+3=987 9x9-1=80 98x9-2=880 987x8-3=8
1简算【0.375+27分之1】x8+27分之19 7÷【 】=4分之5x【 】=14比【 】=1.75=16分之=【
(5x+3)x8=24解方程