一、口算。
13 - 9 =
12 - 9 =
15 - 9 + 7 =
15 - 9 =
14 - 9 =
14 - 9 - 2 =
17 - 9 =
16 - 9 =
13 - 9 + 6 =
19 - 9 =
18 - 9 =
16 - 9 + 8 =
13 - 9 =
12 - 9 =
15 - 9 + 7 =
15 - 9 =
14 - 9 =
14 - 9 - 2 =
17 - 9 =
16 - 9 =
13 - 9 + 6 =
19 - 9 =
18 - 9 =
16 - 9 + 8 =
答案
13 - 9 = 4
12 - 9 = 3
15 - 9 + 7 = 6 + 7 = 13
15 - 9 = 6
14 - 9 = 5
14 - 9 - 2 = 5 - 2 = 3
17 - 9 = 8
16 - 9 = 7
13 - 9 + 6 = 4 + 6 = 10
19 - 9 = 10
18 - 9 = 9
16 - 9 + 8 = 7 + 8 = 15
12 - 9 = 3
15 - 9 + 7 = 6 + 7 = 13
15 - 9 = 6
14 - 9 = 5
14 - 9 - 2 = 5 - 2 = 3
17 - 9 = 8
16 - 9 = 7
13 - 9 + 6 = 4 + 6 = 10
19 - 9 = 10
18 - 9 = 9
16 - 9 + 8 = 7 + 8 = 15
二、圈一圈,算一算。

1. △△△△△△△△△△
△△△△△△
16 - 9 = $□$

2. 🍎🍎🍎🍎🍎🍎🍎🍎🍎🍎
🍎🍎🍎🍎🍎🍎🍎🍎
18 - 9 = $□$
1. △△△△△△△△△△
△△△△△△
16 - 9 = $□$
2. 🍎🍎🍎🍎🍎🍎🍎🍎🍎🍎
🍎🍎🍎🍎🍎🍎🍎🍎
18 - 9 = $□$
答案
1. 圈出9个△
$16-9=7$
2. 圈出9个苹果
$18-9=9$
$16-9=7$
2. 圈出9个苹果
$18-9=9$
三、在括号里填上合适的数。
9 + () = 11
6 + () = 15
() + 6 = 15
() + 9 = 13
7 + () = 16
() + 9 = 12
() + 9 = 17
9 + () = 14
() + 9 = 18
9 + () = 11
6 + () = 15
() + 6 = 15
() + 9 = 13
7 + () = 16
() + 9 = 12
() + 9 = 17
9 + () = 14
() + 9 = 18
答案
11-9=2,括号里填2
15-6=9,括号里填9
15-6=9,括号里填9
13-9=4,括号里填4
16-7=9,括号里填9
12-9=3,括号里填3
17-9=8,括号里填8
14-9=5,括号里填5
18-9=9,括号里填9
15-6=9,括号里填9
15-6=9,括号里填9
13-9=4,括号里填4
16-7=9,括号里填9
12-9=3,括号里填3
17-9=8,括号里填8
14-9=5,括号里填5
18-9=9,括号里填9
四、在$◯$里填上“>”“<”或“=”。
16 - 9$◯$7
15 - 9$◯$5
13 - 9$◯$4
14 - 9$◯$4
15 - 9$◯$6
17 - 9$◯$7
11 - 9$◯$3
13 - 9$◯$7
18 - 9$◯$10
16 - 9$◯$7
15 - 9$◯$5
13 - 9$◯$4
14 - 9$◯$4
15 - 9$◯$6
17 - 9$◯$7
11 - 9$◯$3
13 - 9$◯$7
18 - 9$◯$10
答案
16 - 9 = 7,16 - 9 = 7
15 - 9 = 6,6>5,15 - 9>5
13 - 9 = 4,13 - 9 = 4
14 - 9 = 5,5>4,14 - 9>4
15 - 9 = 6,15 - 9 = 6
17 - 9 = 8,8>7,17 - 9>7
11 - 9 = 2,2<3,11 - 9<3
13 - 9 = 4,4<7,13 - 9<7
18 - 9 = 9,9<10,18 - 9<10
15 - 9 = 6,6>5,15 - 9>5
13 - 9 = 4,13 - 9 = 4
14 - 9 = 5,5>4,14 - 9>4
15 - 9 = 6,15 - 9 = 6
17 - 9 = 8,8>7,17 - 9>7
11 - 9 = 2,2<3,11 - 9<3
13 - 9 = 4,4<7,13 - 9<7
18 - 9 = 9,9<10,18 - 9<10
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