用简便方法计算:34.6×4.3+346×0.47+34.6 观察算式,把346×0.47

分类: 作业答案 • 2022-03-31 13:25:53

问题描述：

用简便方法计算:34.6×4.3+346×0.47+34.6 观察算式,把346×0.47
用简便方法计算:
34.6×4.3+346×0.47+34.6
观察算式,把346×0.47根据积的变化规律转化为34.6×4.7

答

34.6×4.3+346×0.47+34.6
=34.6×4.3+34.6×4.7+34.6
=34.6x10
=346