(0.36+2.46)÷0.6=0.36÷0.6+（2.4+0.06）÷0.6=0.6+2.4÷0.6+0.06÷0.6=0.6+4+0.1=4.7
(0.36+2.46)÷0.6=3÷0.6=5
（0.36+2.46）÷0.6=2.82÷0.6=（2.4+0.42）÷0.6=2.4÷0.6+0.42÷0.6=4+0.7=4.7
