题目内容
【题目】4.85×0.7+1.15×0.7的简便算法是( )
A.4.85×0.7×1.15B.(4.85+1.15)×0.7×0.7
C.4.85+1.15×0.7D.(4.85+1.15)×0.7
【答案】D
【解析】
试题分析:4.85×0.7+1.15×0.7,运用乘法分配律简算.
解答:解:4.85×0.7+1.15×0.7
=(4.85+1.15)×0.7
=6×0.7
=4.2.
故选:D.
练习册系列答案
相关题目
题目内容
【题目】4.85×0.7+1.15×0.7的简便算法是( )
A.4.85×0.7×1.15B.(4.85+1.15)×0.7×0.7
C.4.85+1.15×0.7D.(4.85+1.15)×0.7
【答案】D
【解析】
试题分析:4.85×0.7+1.15×0.7,运用乘法分配律简算.
解答:解:4.85×0.7+1.15×0.7
=(4.85+1.15)×0.7
=6×0.7
=4.2.
故选:D.