1. 直接写出得数。(每题 1 ★)
$7 + 0 = $ $8 + 11 = $ $16 - 5 + 6 = $
$14 + 2 = $ $17 - 5 = $ $14 - 4 - 9 = $
$19 - 7 = $ $8 + 8 = $ $7 + 5 + 2 = $
$9 + 5 = $ $16 - 2 = $ $6 + 9 - 5 = $
$6 + 7 = $ $5 + 14 = $ $9 - 6 + 11 = $
$19 - 10 = $ $15 - 2 = $ $16 - 10 + 5 = $
$12 + 1 = $ $13 + 3 = $ $12 + 3 + 4 = $
$4 + 11 = $ $7 + 8 = $ $15 - 1 + 4 = $
$17 - 4 = $ $18 - 6 = $ $4 + 9 + 3 = $
$18 - 8 = $ $3 + 10 = $ $8 + 6 - 3 = $
$12 + 6 = $ $8 + 7 = $ $17 - 10 + 5 = $
$13 - 1 = $ $19 - 9 = $ $13 - 3 + 7 = $

7 19 17 16 12 1
12 16 14 14 14 10
13 19 14 9 13 11
13 16 19 15 15 18
13 12 16 10 13 11
18 15 12 12 10 17

2. 在$\bigcirc$里填上“$＞$”“$＜$”或“$=$”。(每题 1 ★)
$7 + 9\bigcirc17$ $5 + 8\bigcirc14$ $6 + 7\bigcirc5 + 8$
$13\bigcirc6 + 6$ $10 - 6\bigcirc5$ $9 + 4\bigcirc8 + 4$
$14\bigcirc18 - 3$ $18 + 1\bigcirc19$ $10 + 7\bigcirc17 - 6$

＜ ＜ = ＞ ＜ ＞
＜ = ＞