最新 六年级数学 10道简便计算题带答案谢谢哦 1、2.64×1.7-2.64×0.7 =2.64×(1.7-0.7) =2.64×1 =2.64 2、31.5×1.07-3.15×0.7 =3.15×10.7-3.15×0.7 =3.15×(10.7-0.7) =3.15×10 =31.5 3、2.7×5.7-2.7+5.3×2.7 =2.7×(5.7-1+5.3) =2.7×10 =27 4、0.625÷0.125×0... 2025-08-27 2