3个5和1个1在加减乘除怎么样才等于24?1除5等于0.2 再用5减0.2等于4.8 再乘于5就等于24

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3个5和1个1在加减乘除怎么样才等于24?1除5等于0.2再用5减0.2等于4.8再乘于5就等于243个5和1个1在加减乘除怎么样才等于24?1除5等于0.2再用5减0.2等于4.8再乘于5就等于24

3个5和1个1在加减乘除怎么样才等于24?1除5等于0.2 再用5减0.2等于4.8 再乘于5就等于24
3个5和1个1在加减乘除怎么样才等于24?
1除5等于0.2 再用5减0.2等于4.8 再乘于5就等于24

3个5和1个1在加减乘除怎么样才等于24?1除5等于0.2 再用5减0.2等于4.8 再乘于5就等于24
:75道计算题.包括+、-、*、/、乘方.有点括号也行.(不一定全部都有) :1.3/7 × 49/9 - 4/3 2.8/9 × 15/36 + 1/27 3.12× 5/6 – 2/9 ×3 4.8× 5/4 + 1/4 5.6÷ 3/8 – 3/8 ÷6 6.4/7 × 5/9 + 3/7 × 5/9 7.5/2 -( 3/2 + 4/5 ) 8.7/8 + ( 1/8 + 1/9 ) 9.9 × 5/6 + 5/6 10.3/4 × 8/9 - 1/3 0.12χ+1.8×0.9=7.2 (9-5χ)×0.3=1.02 6.4χ-χ=28+4.4 11.7 × 5/49 + 3/14 12.6 ×( 1/2 + 2/3 ) 13.8 × 4/5 + 8 × 11/5 14.31 × 5/6 – 5/6 15.9/7 - ( 2/7 – 10/21 ) 16.5/9 × 18 – 14 × 2/7 17.4/5 × 25/16 + 2/3 × 3/4 18.14 × 8/7 – 5/6 × 12/15 19.17/32 – 3/4 × 9/24 20.3 × 2/9 + 1/3 21.5/7 × 3/25 + 3/7 22.3/14 ×× 2/3 + 1/6 23.1/5 × 2/3 + 5/6 24.9/22 + 1/11 ÷ 1/2 25.5/3 × 11/5 + 4/3 2:75道化简求值.有大、中、小括号(不一定全有):3.3ab-4ab+8ab-7ab+ab=______. 4.7x-(5x-5y)-y=______. 5.23a3bc2-15ab2c+8abc-24a3bc2-8abc=______. 6.-7x2+6x+13x2-4x-5x2=______. 7.2y+(-2y+5)-(3y+2)=______. 11.(2x2-3xy+4y2)+(x2+2xy-3y2)=______. 12.2a-(3a-2b+2)+(3a-4b-1)=______. 13.-6x2-7x2+15x2-2x2=______. 14.2x-(x+3y)-(-x-y)-(x-y)=______. 16.2x+2y-[3x-2(x-y)]=______. 17.5-(1-x)-1-(x-1)=______. 18.( )+(4xy+7x2-y2)=10x2-xy. 19.(4xy2-2x2y)-( )=x3-2x2y+4xy2+y3. 21.已知A=x3-2x2+x-4,B=2x3-5x+3,计算A+B=______. 22.已知A=x3-2x2+x-4,B=2x3-5x+3,计算A-B=______. 23.若a=-0.2,b=0.5,代数式-(|a2b|-|ab2|)的值为______. 25.一个多项式减去3m4-m3-2m+5得-2m4-3m3-2m2-1,那么这个多项式等于______. 26.-(2x2-y2)-[2y2-(x2+2xy)]=______. 27.若-3a3b2与5ax-1by+2是同类项,则x=______,y=______. 28.(-y+6+3y4-y3)-(2y2-3y3+y4-7)=______. 非常抱歉,三线八角真的不好找,何况上面的 我都找了十多分钟.