5×1/5÷5×4/5= （8/9+2/3-2/27）×27= 4/85÷1/86=?9/17×1/7+5/17÷7= 能简算要简算

写得数2/9÷1/4=?2/9÷2/5=?1/3÷5/8=?5/16÷5/8=? 5 5 5 5 5={1--10}在之间添符号,使之答案得1,2,3,4,5,6,7,8,9,10!（5＋5）÷5－5÷5＝1（5＋5）÷5＋5－5＝2（5＋5）÷5＋5÷5＝35＋5－5÷5－5＝45×5－5×5＋5＝55＋5÷5－5＋5＝6（5÷5＋5）＋5÷5＝7（5＋5＋5）÷5 13/11÷26= 5/8×5= 3/2÷2/3= 8/15×9/10= 5/8×4/15=9/10÷12/5= 21×3/35= 45÷9/5×2/81= 9×5/6÷5/12= 30÷2/3÷4/5= 5/9×11/3×1/2= 3/7÷7/13×14/9= 4/7×28÷1/10= 8÷(-2)²-(-9/5)÷(3/5)²=?8÷(-2)²-(-9/5)÷(3/5)²=2/3 + 3/5 ÷ （-2/5) - 3/4 × （-4/5)=?8÷(-2)²-(-9/5)÷(3/5)²= 2/3 + 3/5 ÷ （-2/5) - 3/4 × （-4/5)=?不小心连一块了。 1/4x÷2/5=5/8 1+2+3+4+5+6+7+8+9+10÷5=?只能口算 2/5+3/5×4/9÷4/5=? 1/2÷4/5÷（2/9×3/8）=?简便计算 从+,-,×,÷,【】中选去适当的符号添在等号左边,使等式成立5 5 5 5 5 =1 5 5 5 5 5 =3 9 9 9 9 9 =3 5 5 5 5 5 =2 5 5 5 5 5 =4 9 9 9 9 9 =20应该是9 9 9 9 9 =17 1÷2/1÷3/2÷4/3÷5/4÷6/5÷7/6÷8/7÷9/8÷10/9=? 1+2+3+4+5+6+7+8+9+10÷11÷12×0=? 5×1/5÷5×4/5= （8/9+2/3-2/27）×27= 4/85÷1/86=?9/17×1/7+5/17÷7= 能简算要简算 4-3/22= 3/8÷5/24= 35×2/5=4-3/22= 3/8÷5/24= 35×2/5= 9×3/5= 25×3/5= 2/3+1/8= 7/8×3/14= 5/6-1/2= 39×9/13= 4/5-1/8= 7/10÷7/12= 10/9-1/9= 2/3×1/4= 36÷4/9= -9+5×(-6)-(-4)的2次方÷(-8)=? 20分只问几题简单的数学题`事后追分计算-91÷13= -56÷(-14)= 16÷(-3)= (-48)÷(-16)= 5/16÷(-1)=-0.25÷3/8=填空1×(-5)= 1÷(-5)= 1+(-5)= 1-(-5)= -1×(-5)= -1÷(-5)= -1×(-5)= -1-(-5)= 计算0.1÷(-0.001)÷(-1)=(-3/4)×(-3/2)÷(-9/4)=- x÷2/5÷3/4=5/8 1+2×3÷4+5+6÷7=1 1+2÷3×4+5+6-7÷8=1 1×2+3+4-5+6+7-8+9=1 能简算的要简算 列式计算4/5÷[5/8×（1-1/5）] 86×4/85 = 9/17×1/7+5/17÷72/5÷(3/4+2/5)