摄影器材公司八五折大减价,一部摄象机原价5000元,一盒录象带原价80元,爸爸带了5000元,想买部摄象机和10盒录像带,他带的钱够吗?
计算下列各题,能简算的要简算. 2.56÷0.04÷0.51.92÷0.12﹣2.37.3﹣1.5÷0.247.52×0.65÷0.752.
用递等式计算,能简算的就简算. (1)(0.1﹣0.09)×100 (2)3.12÷0.025×1.5 (3)1.2×2.5×4×0.2×5 (4)0.25×0.125×32 (5)1.25+1.25+1.25×8 (6)70.6﹣35×1.7+13.5÷5.
看看谁的办法妙! 4.8+2.71+5.2+7.298.47﹣3.56﹣1.4427.6﹣(7.6+3.25) 79.86+99.9159﹣(62.39+58)72.8+(72.8﹣8.25)
计算下面各题. 0.24+3.6×51.82+3.89+0.18 20﹣1.32﹣2.68(4+0.4)×0.25 0.25×7×40.48×0.7+0.52×0.7 28.6×101﹣28.60.25×1.25×32.
用递等式计算,能简便计算的要简算. (1)2.01×1.53÷0.18 (2)5.86×99.4+5.86×0.6 (3)2.2×2.2+2.2×7.8 (4)0.25×(4.83﹣0.85) (5)(12.5+1.25+0.125)×8 (6)(148.4﹣90.85)÷2.5.