24÷6=4, 4×4=16, 16÷4=4, 17+5=22, 24-6=18, 4÷4=1, 1×1=1, 0÷6=0, 5÷1=5, 4+4=8, 9÷3=3, 2×6=12, 6÷2=3, 4-4=0, 5×8=40, 20÷5=4, 6×2=12, 48÷8=6, 4×7=28, 20-5=15, 0÷5=0, 17+7=24, 30÷5=6, 25÷5=5. 故答案为:4,16,4,22,18,1,1,0,5,8,3,12,3,0,40,4,12,6,28,15,0,24,6,5.