9.6*3.6+7.2*02=9.6*3.6+3.6*2*02=3.6*(9.6+0.2*2)=36
9.6*3.6+7.2*0.2
=9.6*3.6+3.6*0.4用等式的性质
=(9.6+0.4)*3.6用乘法分配率的反用
=36
9.6*3.6+7.2*0.2
=9.6*3.6+3.6*2*0.2
=3.6*(9.6+0.4)
=3.6*10
=36
3.6*(9.6+2*0.2)
=3.6*10
=36
9.6*3.6+2*3.6*0.2
=3.6*(9.6+0.4)
=36
9.6*3.6+2*3.6*0.2
3.6*(9.6+0.4)
36