一、口算。
5 + 90 =
6 + 30 =
30 + 10 =
90 + 5 =
30 + 6 =
10 + 30 =
95 - 90 =
36 - 30 =
40 - 10 =
95 - 5 =
36 - 6 =
40 - 30 =
20 + 6 =
9 + 40 =
3 + 20 =
37 - 30 =
75 - 5 =
84 - 4 =
80 + 3 =
20 + 1 =
60 + 8 =
65 - 5 =
94 - 90 =
50 - 20 =
7 + 60 =
20 + 70 =
80 + 4 =
50 + 7 =
56 - 50 =
29 - 9 =
5 + 90 =
6 + 30 =
30 + 10 =
90 + 5 =
30 + 6 =
10 + 30 =
95 - 90 =
36 - 30 =
40 - 10 =
95 - 5 =
36 - 6 =
40 - 30 =
20 + 6 =
9 + 40 =
3 + 20 =
37 - 30 =
75 - 5 =
84 - 4 =
80 + 3 =
20 + 1 =
60 + 8 =
65 - 5 =
94 - 90 =
50 - 20 =
7 + 60 =
20 + 70 =
80 + 4 =
50 + 7 =
56 - 50 =
29 - 9 =
答案
95 36 40
95 36 40
5 6 30
90 30 10
26 49 23
7 70 80
83 21 68
60 4 30
67 90 84
57 6 20
95 36 40
5 6 30
90 30 10
26 49 23
7 70 80
83 21 68
60 4 30
67 90 84
57 6 20
二、连一连。

答案
二、
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