(1.9×0.8+0.48)/0.4
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(1.9×0.8+0.48)/0.4(1.9×0.8+0.48)/0.4(1.9×0.8+0.48)/0.4
(1.9×0.8+0.48)/0.4
(1.9×0.8+0.48)/0.4
(1.9×0.8+0.48)/0.4
(1.9×0.8+0.48)/0.4
10×( )-( )×0.4=0.48
10*(?)-(?)*0.4=0.48
matlab双坐标各两条曲线K=[4.1 3.24 2.88 2.34 2.08 1.9 1.82 1.5 1.44...1.12 1.05 1.02 0.95 0.92 0.83 0.72 0.66 0.54];II=[0 0.1 0.2 0.3 0.36 0.4 0.42 0.48 0.5...0.57 0.6 0.7 0.78 0.8 0.9 1.0 1.05 1.1];YY=[31.6 32.3 33.4 35.1 36.2 37.2 37.5 39.0
5.7-1.9×0.2÷7.6简便运算 0.4×(3.2-0.8)÷0.15 6.6÷【14.5-5.7-1.9×0.2÷7.6简便运算0.4×(3.2-0.8)÷0.156.6÷【14.5-(1.7+1.8)】9.4÷【(1.2+1.3)÷0.25】
(3.8+3.4*3.8+3.8*5.6)/(1.9*0.8*0.25)
0.4 0.45 1.9 2.8 0.8 0.120.4 0.45 1.9 2.8 0.8 0.12 8.5 3.2 5.6 2.5 4.4 1.5 8.1 25.5都画分数
7.5×1.9×0.4
(0.8×7+4.56÷1.9)×12.5简便计算
0.48/(5.2-4.6)*0.8简算
找规律:0.4,0.4,0.8,2.4,2.4,( ),( ),( )
0.8X(x-0.4)=8
0.25×(0.4+0.8)×12.5(递等式)
3.2÷0.01= 6.8-10.8= 51×39≈ 1÷ ×3= 8×125%= 7.2+8= 10.8÷1.08×0= (0.25+ )÷10=3/7-3/5+4/7+0.4 (6.9-3.15)÷0.3×0.8 2.5×(1.9+1.9+1.9+1.9) 3、 解方程或解比例(6分)2Ⅹ+2.7=24.7 Ⅹ&sh
0.8+4.5-1.9 5.26+7.74
求0.4:0.48的比值是多少?
(1 +0.37+0.48)(0.37+0.48+0.59)-(1+0.37+0.48+0.59)(0.37+0.48)
(6.9-3.15)÷0.3×0.8 2.5×(1.9+1.9+1.9+1.9)简便计算要怎么算啊