计算:0.1+0.3+0.5+0.7+0.9+0.1 1+0.13+0.15+0.17+0.19.
计算下面各题,怎样简便就怎样计算. 0.75×3.6×10.7 5.06×(2.08÷5.2) 4.8×0.7÷4.8 24.6÷2.5÷0.4.
0.25×27×445×36+64×451.25×320×250.96×25 9.9×999+9.91.08×125 8×25×1.25×16489×101﹣489 33×1.0328×45+30×135.6×9+560.98×54.
递等式计算,写出必要的计算过程,能简便计算的用简便方法计算: (1)7.06×2.4﹣5.7 (2)5.4×99+5.4 (3)9.6×72+9.6×28 (4)(1.25×2.5)×4 (5)10.4+72×0.81 (6)11×0.6×0.4 (7)(12.8+4.99)÷0.2 (8)1.25×8+2.5×4.4.
怎样简算怎样算. 12.5×3.2 0.125×3.41×80 3.1×0.99 1.25×(8.1+0.7) 1.25×0.88+1.12×1.25.
7.25÷0.8÷0.125 4.92÷0.25÷0.4 0.75×18÷0.15 0.34×2.5÷3.4.