五年级数学下册《小数简便计算题》,寒假练习!

五年级数学下册《小数简便计算题》,寒假练习!


简介:
15.68﹣(7.78﹣4.32)﹣2.32 =15.68﹣7.78+4.32﹣2.32 =(15.68+4.32)﹣(7.78+2.32) =20﹣10.1 =9.9 4.63×1.4+46.3×0.86 =46.3×0.14+46.3×0.86 =46.3×(0.14+0.86) =46.3×1 =46.3 12.5×0.76×0.4×8×2.5 =(12.5×8)×(0.4×2.5)×0.76 =100×1×0.76 =76 23.25﹣6.75﹣3.25 =23.25﹣(6.75+3.25) =23.25﹣10 =13.25