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26%(7/9/12+1/6)×(%6)^2

0.12*1+0.09*7+0.06*1 =0.12+0.63+0.06 =0.81

解:7/12+1/6等于( 3/4 ) ∵已知需求出7/12+1/6等于多少 X + Y = Z ∴7/12 + 1/6 = 7/12 + (1*2)/(6*2) = 7/12 + 2/12 = (7+2)/12 = 9/12 = 3/4 答:7/12+1/6等于3/4

108分之55

9/10-(7/12+1/6) =9/10-(7/12+2/12) =9/10-3/4 =18/20-15/20 =3/20

1,2,4,6,7,10,10,(14 ),( 13) 第一个与第三个差3,第三个与第五个差3,第五个与第七个差3,所以第九个数为10+3=13第二个与第四个数差4,第四个数与第六个数差4,.所以第八个数为10+4=14

45.55-(6.82+15.55) 34.52-17.87-12.23 6.43-(1.4-0.57) 23.75-8.64-3.46 17.83-9.5-7.83-0.5 5.38+88.2-2.38+1.8 27.38-5.34+2.62-4.66 21.63-(8.5+9.63) 7.5-2.45+7.5+2.45 5.09-(0.09+1.23) 9.36-(4.36-3.5) 609-708+306-108+202-198+497-100

6.54+2.4+3.46+0.6 95.6*1.8+95.6*8.2 600-420÷12 344÷3.6-5.4*0.25 3.375+5.75+2.25+6.625 72 ÷9 1001-9036÷18 3.8*5.25+14.5 2.1*4.3+5.7*2.1 102*45-328 2.8*3.1+17.6÷8 3001-1998 5000-105*34 0.15÷0.25+0.75*1.2 1.8*3 403÷13*27 1.5*4.2-0.75÷0.25

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 11. 7 * 5/49 + 3/14 12. 6 *( 1/2 + 2/3 ) 13. 8 * 4/5 + 8 * 11/5

一、红色: 7/45+0/45+3/66+6/11+12%=3份+1份+2克+3克+1没做到那么艳 二、黄色:8/33+0/33+0/88+3/66+12%=3份+1份+3克+3克+1/ b/ F w$ S$ U& [+ a% W! {1 }$ w C1 M0 B* y1 Z9 b& M 三、橙黄:8/33+8/43+0/45+/3/66+12%=8份+1份+5

你好,-1/2+1/6+1/12+1/20+1/30+1/42 =-1/2+(1/2-1/3)+(1/3-1/4)+(1/4-1/5)+(1/5-1/6)+(1/6-1/7) =-1/7 希望我的回答能帮到你,满意望采纳~

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