小学数学5。16+3。5*2。4 能用简便计算吗？

5.16+3.5*2.4
=5.16+(3+0.5)*2.4
=5.16+7.2+1.2
=13.56

能。
方法一：5.16+3.5*2.4
=5.16+3.5*（2+0.4）
=5.16+3.5*2+3.5*0.4
=5.16+7+1.4
=13.56
方法二:5.16+3.5*（3-0.6）
=5.16+10.5-2.1
=13.56

5.16+3.5*2.4
=5.16+(0.5*0.6)*(7*4)
=5.16+0.3*28
=5.16+8.4
=13.56

5.16+3.5*2.4
=5.16+3.5*(2+0.4)
=5.16+7+1.4
=13.56

其实用计算器最简便

5.16+3.545612387652.4
=5.16+(3+0.5)*2.4
=5.16+7.2+1.2
=13.56