3.2×6.8+0.32×32
=3.2×6.8+0.32×10x3.2
=3.2x(6.8+3.2)
=3.2x10
=32
3.2X6.8+0.32X32
=3.2X6.8+3.2X0.1X32
=3.2X(6.8+0.1X32)
=3.2X10
=32
简便计算过程如下
3.2×6.8+0.32×32
=3.2×6.8+0.32×10×3.2
=3.2×6.8+3.2×3.2
=3.2×(6.8+3.2)
=3.2×10
=32
望采纳
3.2x6.8+0.32x32
=3.2ⅹ6.8+3.2x3.2
=3.2x(6.8+3.2)
=3.2x10
=32
3.2(6.8+3.2)
=3.2*10
=32