240:4+345:5+260= 23657+2345-3215=
240:4 + 345:5 + 260= 23657+2345-3215 = 389
1) 240 ÷ 4 = 60
2) 345 ÷ 5 = 69
3) 60 + 69 = 129
4) 129 + 260 = 389