五年级上册数学 计算题提升训练

五年级上册数学 计算题提升训练


简介:
8.54÷2.5÷0.4 4.8×7.8+78×0.52 =8.54÷(2.5×0.4) =4.8×7.8+7.8×5.2 =8.54×1 =(4.8+5.2)×7.8 =8.54 =78 3.14×0.68+31.4×0.032 56.5×99+56.5 =31.4×0.068+31.4×0.032 =56.5×(99+1) =31.4×(0.068+0.032) =56.5×100 =31.4×0.1 =5650 =3.14