12和48最大公因数:最小公倍数:
下面各题怎样算简便就怎样算.3.28×4.6+6.72×4.6 0.25×1.25×0.49.73×2.8﹣4.73×2.8. 12.5×4+3.12÷1.225.2﹣(7.8﹣2.6)×1.3 14.08÷[0.8×(7.93﹣2.43)].
怎样简便就怎样算.①4.7+7.69+5.3+2.31 ②2000÷125÷8③57×101﹣57 ④125×32×25⑤86.5﹣(14.3﹣7.75) ⑥89.67+0.08﹣70.67.
计算下面各题,能简便的就简便.7.6+7.6 0.09+0.6+5.91+3.41.3×101 32×1.25×2.5.
递等式计算,能简算的要简算.(4.2﹣0.4×6)÷4 (15300÷600+67.5)×18010500÷(10500÷25×1.25) (5.84﹣3.9)÷0.4+0.15×0.92(2400﹣480×2.5)÷1.6 0.32×12.5×2502.4×5.5+2.4×3.5+2.4 9.825×0.2+98.25×0.09﹣0.393÷0.4.
计算下面各题,能简算的要简算. 0.89×100.1 146.5﹣(23+46.5)5.83×2+4.27 (45.9﹣32.7)÷8÷0.125.