Question

三点5×1点2+4点16除以3.2，怎么简算？

Answer 1

3.5×1.2+4.16÷3.2
=(3.5×1.2×3.2+4.16÷3.2×3.2)/3.2
=(3.5×2×0.6×3.2+4.16)/滚姿3.2
=(4.2×(3+0.2)+4.16)/3.2
=(12.6+0.84+4.16)/大悄绝3.2
=(12.6+5)/3.2
=17.6/3.2
=(17.6/0.8)/(3.2/0.8)
=22/运烂4
=5.5

Answer 2

3.5x1.2+4.16÷3.2
=(3.5x1.2x3.2+4.16÷3.2x3.2)/谈空3.2
=(3.5x2x0.6x3.2+4.16)/3.2
=【4.2x(3+0.2)+4.16】/含腔瞎3.2
=(12.6+0.84+4.16)/圆含3.2
=(12.6+5)/3.2
=17.6/3.2
=(17.6/0.8)/(3.2/0.8)
=22/4
=5.5

Answer 3

3.5x1.2+4.16÷3.2
=3.5x1.2x3.2+4.16
=13.44+4.16
=17.6

Answer 4

3.5x1.2+4.16÷3.2=3.5x1.2x3.2+4.16=13.44+4.16=17.6

Answer 5

3.5x1.2+4.16除皮雹以3.2
=3.5x1.2+4.16x1/派握坦尘桐3.2
=3.5x1.2+1.3
=1.2X(3+0.5)+1.3
=3.6+0.6+1.3
=4.2+1.3
=5.5