6.365÷5-6.115÷5
2.736÷24+2.064÷24
4836.5÷125÷8
746.5÷25÷4
1818.18÷18
639.36÷32
83.85÷15-23.85÷15
36.48÷12+11.52÷12
12.8÷4=
7.5÷5=