口算+0.625= 1÷0.05= 78×9.9+7.8= ÷=10÷10%= 678﹣399= 1﹣﹣= 15÷5=
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+7.29 8.47﹣3.56﹣1.44 27.6﹣(7.6+3.25)79.86+99.9 159﹣(62.39+58) 72.8+(72.8﹣8.25)
计算下面各题.0.24+3.6×5 1.82+3.89+0.18 20﹣1.32﹣2.68 (4+0.4)×0.25 0.25×7×4 0.48×0.7+0.52×0.728.6×101﹣28.6 0.25×1.25×32.
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.
0.25×0.99×40.