What do you see? ____
58 ×4=____
25÷ 12 =____
8÷ 23 =____
25 + 35 =____
45 ÷ 43 =____
35 × 23 =____
0× 89 =____
1﹣ 56 =____
183 191 169 190 177
则在该时间段中,通过这个路口的汽车数量的平均数是____.