一、口算。
5 + 6 =
13 + 60 =
82 - 5 + 7 =
9 + 54 =
48 - 9 =
54 + 30 - 8 =
14 - 7 =
38 + 20 =
69 - 60 + 35 =
32 + 30 =
26 - 9 =
10 + 43 - 6 =
64 - 20 =
40 + 50 =
38 - 9 - 10 =
59 + 3 =
81 - 5 =
35 + 5 + 9 =
91 - 4 =
5 + 85 =
96 - 70 + 2 =
39 + 3 =
60 - 7 =
77 + 4 - 8 =
84 - 5 =
75 + 20 =
91 - 6 - 40 =
76 + 8 =
96 - 9 =
24 + 8 + 60 =
5 + 6 =
13 + 60 =
82 - 5 + 7 =
9 + 54 =
48 - 9 =
54 + 30 - 8 =
14 - 7 =
38 + 20 =
69 - 60 + 35 =
32 + 30 =
26 - 9 =
10 + 43 - 6 =
64 - 20 =
40 + 50 =
38 - 9 - 10 =
59 + 3 =
81 - 5 =
35 + 5 + 9 =
91 - 4 =
5 + 85 =
96 - 70 + 2 =
39 + 3 =
60 - 7 =
77 + 4 - 8 =
84 - 5 =
75 + 20 =
91 - 6 - 40 =
76 + 8 =
96 - 9 =
24 + 8 + 60 =
答案
一、11 73 84 63 39 76 7 58 44 62 17 47 44 90 19 62 76 49 87 90 28 42 53 73 79 95 45 84 87 92
二、在(
(
(
93 -(
74 -(
(
8 +(
6 +(
9 +(
(
36
)里填合适的数。(
36
)+ 40 = 76(
35
)+ 8 = 4393 -(
50
)= 4374 -(
70
)= 4(
59
)- 29 = 308 +(
72
)= 806 +(
56
)= 629 +(
72
)= 81(
70
)- 7 = 63答案
二、36 35 50 70 59 72 56 72 70
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