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

2 4 12 12 15 5
10 1 0 7 18 4
11 14 3 19 10 2
11 14 8 9 16 5
3 15 17 5 12 6
13 19 14 9 14 12

2. 小动物回家。(连一连)(5★)