找出下面每个三角形的底和对应的高
递等式计算,能简算的要简算 0.11×1.8+8.2×0.110.8×(3.2﹣2.99÷2.3) (8.1﹣5.4)÷3.6+85.7.
下面各题怎样算简便就怎样算. 18.65﹣3.7+1.35﹣6.330×[3.61÷(7.2﹣5.3)] 36÷[1.44×(0.1﹣0.05)](16.5×3+3×7.5)÷6.
神机妙算: 0.8×6.5﹣×3.5(+)×451﹣÷+ 25×1.25×3299×+1﹣﹣.
(1)79.76+84.7×0.2(2)15.37+28.44+12.56 (3)(2.3×8.8﹣2.3×0.8)×1.25(4)[5.2﹣(2.5+7.5÷5)]×1.2.
用递等式计算,能简便计算的用简便方法计算 (1)37.7÷13+1.8×2.4 (2)1.25×3.2×0.25 (3)1.06×(2.9+1.6)÷0.01 (4)6.27×5.2+5.8×6.27﹣6.27 (5)50.5÷[(15.6﹣3.5×4)÷3.2].