0.82X98的简便计算
0.82x98用简便方法怎么做 -
=0.82×100-0.82×2 =82-1.64 =80.36
供参考,
=0.82×100-0.82×2 =82-1.64 =80.36
供参考,
0.82×98 =0.82×(100-2)0.82×100-0.82×2 =82-1.64 =80.36
0.82X98=0.82×(100-2)=82-1.64 =80.36
7.2x9.9怎么简便计算 -
简便计算:4.62x9.9+0.462 4.62x9.9+0.462 =4.62x9.9+4.62×0.1 =4.62×(9.9+0.1)4.62×10 =46.2 希望采纳,您的采纳是我们前进的动力4.2x9.9+0.42简便计算 4.2x9.9+0.42 =4.2*(9.9+0.1) =4.2*10 =42 7.2x98的简便计算 7.2x98 =7是什么。
9.8×10.1=9.8×10+9.8×0.1=98+0.98=98.98 12.5×5.97×0.8=12.5×0.8×5.97=10×5.97=59.7
小数乘除法计算题各20道题、简便计算40道题、方程20道题 -
简便计算题100道.分数乘除法,或应用题50道3(20-y)=6y-4(y-11) a^3-2b^3+ab(2a-b) x^2+y^2)^2-4y(x^2+y^2)+4y^2 x^2+2x)^2+3(x^2+2x)+x^2+2x+3 a^3-2b^3+ab(2a-b) =a^3+2a^2b-2b^3-ab^2 =a^2(a+2b)-b^2(2b+a) =(a+2b)(a^2-b^2) =(a+2b)(a等会说。
三、用简便方法计算。65分) 1125-997 998+1246+9989 (8700+870+87)÷87 125×8.8 1.3+4.25+3.7+3.75 17.15-(3.5-2.85) 3.4×99+3.4 4.8×1.01 0.4×(2.5÷73) (1.6+1.6+1.6+1.6)×25 (+-)÷ 12.3-2.45-5.7-4.55 2 + 0.125×0.25×64 64.2×87+0.642×1300 78×36+7.8×741-7 17+ 8 0.12等我继续说。
98x0.35 (16+1.48除3.7)除0.82 14.3x5.8-0.43X58 -
98x0.35 =(100-2)x0.35 =100x0.35-2x0.35 =35-0.7 =34.3 ,16+1.48除3.7)除0.82 =(16+0.4)÷0.82 =16.2÷0.82 =20 ,14.3x5.8-0.43X58 =14.3x5.8-4.3x5.8 =(14.3-4.3)x5.8 =10x5.8 =58 是什么。
4.02+5.4+0.98 5.17-1.8-3.2 13.75-(3.75+6.48)3.68+7.56-2.68 7.85+2.34-0.85+4.66 35.6-1.8-15.6-7.2 3.82+2.9+0.18+9.1 9.6+4.8-3.6 7.14-0.53-2.47 5.27+2.86-0.66+1.63 13.35-4.68+2.65 47.8-7.45+8.8 还有呢?