37.2乘以0.56+3.72乘以4.4用简便计算咋算?

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37.2乘以0.56+3.72乘以4.4用简便计算咋算?37.2乘以0.56+3.72乘以4.4用简便计算咋算?37.2乘以0.56+3.72乘以4.4用简便计算咋算?37.2*0.56+3.72*4

37.2乘以0.56+3.72乘以4.4用简便计算咋算?
37.2乘以0.56+3.72乘以4.4用简便计算咋算?

37.2乘以0.56+3.72乘以4.4用简便计算咋算?
37.2*0.56+3.72*4.4
=3.72*5.6+3.72*4.4
=3.72*(5.6+4.4)
=3.72*10
=37.2

原式=37.2*0.56+37.2*0.44
=37.2*(0.56+0.44)
=37.2*1
=37.2