三年级数学口算30道加减混合
好的以下是一道三年级的数学口算题目:
23 + 17 =
45 - 19 =
12 + 8 =
56 - 30 =
38 + 7 =
29 - 5 =
15 + 14 =
62 - 27 =
24 + 9 =
51 - 13 =
36 + 6 =
73 - 29 =
18 + 11 =
55 - 16 =
33 + 8 =
48 - 22 =
27 + 7 =
64 - 31 =
22 + 9 =
57 - 24 =
13 + 10 =
58 - 35 =
25 + 14 =
69 - 28 =
31 + 6 =
47 - 21 =
16 + 12 =
63 - 37 =
19 + 8 =
56 - 33 =
解答如下:
23 + 17 = 40
45 - 19 = 26
12 + 8 = 20
56 - 30 = 26
38 + 7 = 45
29 - 5 = 24
15 + 14 = 29
62 - 27 = 35
24 + 9 = 33
51 - 13 = 38
36 + 6 = 42
73 - 29 = 44
18 + 11 = 29
55 - 16 = 39
33 + 8 = 41
48 - 22 = 26
27 + 7 = 34
64 - 31 = 33
22 + 9 = 31
57 - 24 = 33
13 + 10 = 23
58 - 35 = 23
25 + 14 = 39
69 - 28 = 41
31 + 6 = 37
47 - 21 = 26
16 + 12 = 28
63 - 37 = 26
19 + 8 = 27
56 - 33 = 23
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