赚现金
用简便方法计算.(1)2.3×7.6+2.3×12.4(2)1.25×3.2(3)8.3×0.125×8(4)5.9×101﹣5.9(5)1.35+0.89+2.11(6)5.12﹣3.43+2.88.
试题篮