一、在$◯$里填“＞”“＜”或“=”。
$14 - 7◯6$ $9 + 6◯14$ $11 - 7◯7 + 2$
$11 - 3◯7$ $16 - 9◯8$ $12 - 9◯6 - 3$
$9 + 8◯17$ $4 + 9◯14$ $16 - 8◯7 + 7$
$15 - 8◯9$ $8 + 5◯13$ $50 + 9◯9 + 50$
$6 + 5◯12$ $16 - 6◯8$ $12 - 3◯49 - 9$
$5 + 7◯12$ $14 - 6◯9$ $70 - 50◯14 - 8$
$12 - 6◯9$ $20 + 30◯49$ $11 - 8◯16 - 7$
$57 - 7◯10 - 5$ $62 - 60◯43 - 3$ $60 - 40◯60 - 20$
$40 + 9◯56 - 6$ $20 + 3◯3 + 20$ $13 - 7◯56 - 6$
$18 - 9◯10 - 1$ $14 - 8◯97 - 90$ $6 + 9◯65 - 5$

一、＞ ＞ ＜
＞ ＜ =
= ＜ ＜
＜ = =
＜ ＞ ＜
= ＜ ＞
＜ ＞ ＜
＞ ＜ ＜
＜ = ＜
= ＜ ＜

二、在$□$里填合适的数。
$9 + □ = 14$         $15 - □ = 7$         $6 + □ = 5 + 8$
$12 - □ = 3$         $□ + 9 = 18$         $□ - 50 = 10 + 20$
$□ + 5 = 13$         $86 - □ = 80$         $□ + 7 = 10 + 6$
$11 - □ = 9$         $9 + □ = 12$         $□ - 5 = 10 - 4$
$□ + 6 = 76$         $45 - □ = 40$         $90 + □ = 98$
$34 - □ = 4$         $60 + □ = 80$         $29 - □ = 20$
$20 + □ = 60$         $74 - □ = 4$         $□ + 2 = 82$
$□ - 4 = 50$         $□ + 60 = 69$         $□ - 40 = 4$
$□ + 1 = 31$         $50 - □ = 10$         $60 + □ = 62$
$79 - □ = 70$         $□ + 5 = 75$         $28 - □ = 20$

二、5 8 7
9 9 80
8 6 9
2 3 11
70 5 8
30 20 9
40 70 80
54 9 44
30 40 2
9 70 8