12+[0.4*0.75+(0.5+?)*3]/0.3=98 等于几 9.81*0.1+0.5*98.1+0.049*981= 6789.6789/6.789=每题简算
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12+[0.4*0.75+(0.5+?)*3]/0.3=98 等于几 9.81*0.1+0.5*98.1+0.049*981= 6789.6789/6.789=每题简算
12+[0.4*0.75+(0.5+?)*3]/0.3=98 等于几 9.81*0.1+0.5*98.1+0.049*981= 6789.6789/6.789=
每题简算
12+[0.4*0.75+(0.5+?)*3]/0.3=98 等于几 9.81*0.1+0.5*98.1+0.049*981= 6789.6789/6.789=每题简算
1.原式=12+[0.3+(0.5+?)*3]/0.3=98
=12+[0.3+1.5+3?]=29.4
=13.8+3?=29.4
=3?=15.6
=5.2
2.原式=9.81*0.1+0.5*(9.81*10)+0.049*(9.81*100)
=9.81*0.1+9.81*(0.5*10)+9.81*(0.049*100)
=9.81*0.1+9.81*5+9.81*4.9
=9.81*(0.1+5+4.9)
=9.81*10=98.1
3.原式=6789.6789/6.789
=6789.6789/0.6789/10
=(6789+0.6789)/0.6789/10
=(6789/0.6789+0.6789/0.6789)/10
=(10000+1)/10
=10001/10=1000.1
已经够简单了
不用减算吧
12+(0.4*0.75+(0.5+x)*3)/0.3 求x是几对不起,是12+(0.4*0.75+(0.5+x)*3)/0.3=98,实在抱歉!
{0.4+三分之二}/【{六分之五-0.75}*0.5】
12+[0.4*0.75+(0.5+?)*3]/0.3=98 等于几 9.81*0.1+0.5*98.1+0.049*981= 6789.6789/6.789=每题简算
简算 (0.4+2/3)/(5/6-0.75)*0.5
合并同类二次根式:(1)(6根号0.75-根号18-根号12)—(0.4根号108-5根号2-4根号0.5)
已知:12+[0.4×0.75+(0.5+□)×3]÷0.3=98,求方框内应填的数.(要有计算过程).
0.4x+0.9/0.5-0.3x+0.1/.2-0.75-0.5x/0.75=0怎么解,求你了
化简比 8:12 0.25:0.75 125:25 1.6:0.4化简比8:12 0.25:0.75 125:251.6:0.4 0.07:0.4 1.44:0.8
(0.4+2/3)÷(5/6-0.75)×0.5能的话请发一下
【潜能开发题】巧思妙算!0.5×0.8×0.2×1.25×0.4×2.5 0.75×4.3+2.5×0.43
0.4^(0.5)
化成最简分数 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 0.15 0.25 0.35 0.45 0.55 0.65 0.75 0.85 0.950.12 0.16 0.24 0.36 0.48 0.720.125 0.375 0.625 0.875
简算(8/15+9/20*2/3)÷1/12 (0.4+2/3)/(5/6-0.75)*0.5 方程 1/4x+3/4x=1/3 7/16:x =7/8:32/9
12+ [0.4×0.75+(7.5+△)×3] ÷0.3=98,求△=?
0.4*0.25/0.4*0.75 简便运算
计算(加减乘除)一.(-5/7)+1.4二.3/2-[(-1.5)+0.5]三.(-7.75)-(-3.5)(+0.75)-(-8.5)四.1/5*1/2*(-15)+7*(-1/2)五.-3*4+12*(1/3-5/2)六.(-8)/ 4*(-3)七.1/6 / (-4/3)/(-0.25)八.(-1.6)*0.4 / (-0.5)九.(-3/4)*(-1.5)/(-2.
0.4^0.5与 0.5^0.4比较大小
解一元一次不等式(X-12)x1/0.5 - ( X+1)x1/0.75 > 18