42.4+7.6= 1.58+2.42= 23.5+76.5÷0.25= 7.8-5.6= 1.25×4= 34.6÷0.2×4= 0.24÷0.3= 7.8×0.5

...8.76+0.351= 42.4+7.6= 1.58+2.42= 7.8-5.6= 1.25
9.782÷3.2=3.056875 53.73-17.49=36.24 8.76+0.351=9.111 42.4+7.6=50 1.58+2.42=4 7.8-5.6=2.2 1.25×4=5 7.8×0.5=3.9 3.9+2.7=6.6 0.24÷0.3=0.8 2.5×4=10 0.3÷10=0.03 1.25×8=10 5.7÷5.7=1 0÷4.8=...

2.4梅0.25脳4简便计算
=2.4÷（0.25×4）=2.4÷1 =2.4

求大家帮我出很多道口算题和坚式计算
22.42梅6+20=27 23.40-5脳7= 5 24.80+60梅3=100 25.41+18梅2= 50 26.75-11脳5= 20 27.42+7-29= 20 28.5600梅80=70 29.25脳16= 400 30.120脳25= 3000 31.36脳11= 396 32.1025梅25=41 33.336+70= 406 34.25脳9脳4= 900 35.200-33脳3= 101 36.3020-1010=2010...

1.25×2又7\/10+3又(4\/5)÷0.8=
回答：我可以帮你解答, 但是这对你没有好处,你是否坚持需要

0.5x+(60-x)脳4=100
0.5x+（60-x）×4=100 解：0.5x+240-4x=100 240-3.5x=100 3.5x=240-100 3.5x=140 x=140÷3.5 x=40

1÷1×2+1÷2×3+1÷3×4+……+1÷2015×2016=2015\/2016
1\/(1*2)+1\/(2*3)+1\/(3*4)+1\/(4*5)+...+1\/(2015*2016)=(1\/1-1\/2)+(1\/2-1\/3)+(1\/3-1\/4)+(1\/4-1\/5)+...+(1\/2015-1\/2016)=1\/1-1\/2016 =2015\/2016

1\/1×2+1\/2×3+1\/3 ×4 ...+1\/99×100=( )
1\/1×2+1\/2×3+1\/3 ×4 ...+1\/99×100 =1-1\/2+1\/2-1\/3+1\/3-1\/4+……+1\/99-1\/100 =1-1\/100 =99\/100

简便计算1.28×9.5+7.2×0.95
9.5脳(1-0.95)梅0.01简便计算 9.5脳(1-0.95)梅0.01简便计算 9.5脳(1-0.95)梅0.01 =9.5*0.05*0.01 =9.5*0.0005 =0.00475 9.5×9.9+0.95列式用简便计算 9.5×9.9+0.95 =9.5×9.9+9.5×0.1 =9.5×（9.9+0.1） =9.5×10 =95 7.2x...

24×(3\/1-4\/1)=?
(3\/1-4\/1)梅25% (3\/1-4\/1)x25% =-1x25% =-0.25 -3\/2×[3\/1+(3\/1-4\/1)↘的2次方÷144\/1] -3\/2×[3\/1+(3\/1-4\/1)↘的2次方÷144\/1] =-2\/3×{1\/3+1\/12²×144} =-2\/3×4\/3 =-8\/9; 请采纳 如果你认可我的回答，敬请及时采纳， ...

3,4,-6,10用加减乘除的方法任何方法 最后得数是24
3×6+10-4=24 3×[4+（10-6)]=24 (10-6+4)×3=24 参考资料：自己算的