一、口算。
4 + 8 =
16 - 7 =
6 + 9 - 8 =
15 - 6 =
3 + 9 =
13 - 2 - 2 =
5 + 8 =
11 - 3 =
7 + 7 - 6 =
12 - 3 =
13 - 5 =
10 - 5 + 6 =
17 - 8 =
6 + 5 =
15 - 9 + 7 =
13 - 6 =
13 - 4 =
13 - 4 + 8 =
5 + 7 =
6 + 9 =
2 + 12 - 5 =
11 - 6 =
15 - 8 =
2 + 3 + 9 =
4 + 7 =
2 + 9 =
15 - 7 + 10 =
12 - 7 =
14 - 5 =
19 - 8 - 5 =
4 + 8 =
16 - 7 =
6 + 9 - 8 =
15 - 6 =
3 + 9 =
13 - 2 - 2 =
5 + 8 =
11 - 3 =
7 + 7 - 6 =
12 - 3 =
13 - 5 =
10 - 5 + 6 =
17 - 8 =
6 + 5 =
15 - 9 + 7 =
13 - 6 =
13 - 4 =
13 - 4 + 8 =
5 + 7 =
6 + 9 =
2 + 12 - 5 =
11 - 6 =
15 - 8 =
2 + 3 + 9 =
4 + 7 =
2 + 9 =
15 - 7 + 10 =
12 - 7 =
14 - 5 =
19 - 8 - 5 =
答案
一、12 9 7
9 12 9
13 8 8
9 8 11
9 11 13
7 9 17
12 15 9
5 7 14
11 11 18
5 9 6
9 12 9
13 8 8
9 8 11
9 11 13
7 9 17
12 15 9
5 7 14
11 11 18
5 9 6
二、在 ○ 里填“>”“<”或“=”。
15 - 8 ○ 9
12 ○ 4 + 8
2 + 9 ○ 3 + 8
6 + 7 ○ 17
9 ○ 14 - 6
12 - 4 ○ 13 - 4
11 - 3 ○ 6
12 ○ 6 + 7
17 - 5 ○ 5 + 7
15 - 8 ○ 9
12 ○ 4 + 8
2 + 9 ○ 3 + 8
6 + 7 ○ 17
9 ○ 14 - 6
12 - 4 ○ 13 - 4
11 - 3 ○ 6
12 ○ 6 + 7
17 - 5 ○ 5 + 7
答案
二、< = =
< > <
> < =
< > <
> < =
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