1. 直接写出得数。
43 + 54 = 44 × 2 = 66 ÷ 2 = 44 ÷ 4 + 33 =
58 + 17 = 48 ÷ 4 = 60 - 22 = 7 × 9 - 14 =
54 - 19 = 80 ÷ 4 = 16 + 53 = 6 × 2 ÷ 4 =
67 - 27 = 22 × 4 = 34 + 19 = 44 + 18 - 12 =
48 + 18 = 66 ÷ 3 = 87 - 39 = 66 + 18 - 14 =
60 + 26 = 33 ÷ 3 = 34 + 18 = 4 × 10 × 2 =
43 - 18 = 10 × 8 = 68 ÷ 2 = 78 - 19 + 20 =
53 - 17 = 72 - 54 = 16 ÷ 4 = 60 ÷ 3 - 18 =
43 + 54 = 44 × 2 = 66 ÷ 2 = 44 ÷ 4 + 33 =
58 + 17 = 48 ÷ 4 = 60 - 22 = 7 × 9 - 14 =
54 - 19 = 80 ÷ 4 = 16 + 53 = 6 × 2 ÷ 4 =
67 - 27 = 22 × 4 = 34 + 19 = 44 + 18 - 12 =
48 + 18 = 66 ÷ 3 = 87 - 39 = 66 + 18 - 14 =
60 + 26 = 33 ÷ 3 = 34 + 18 = 4 × 10 × 2 =
43 - 18 = 10 × 8 = 68 ÷ 2 = 78 - 19 + 20 =
53 - 17 = 72 - 54 = 16 ÷ 4 = 60 ÷ 3 - 18 =
答案
1. 97 88 33 44
75 12 38 49
35 20 69 3
40 88 53 50
66 22 48 70
86 11 52 80
25 80 34 79
36 18 4 2
75 12 38 49
35 20 69 3
40 88 53 50
66 22 48 70
86 11 52 80
25 80 34 79
36 18 4 2
2. 算一算,填一填。

答案
2. 22 33 44 55
66 77 88 57
46 38 25 13
9 2 25 32
39 51 65 73
84
66 77 88 57
46 38 25 13
9 2 25 32
39 51 65 73
84
3. 找规律,填一填。
(1)110,120,130,140,(
(2)2,4,6,8,(
(3)88,77,66,55,44,(
(4)950,900,850,800,(
(1)110,120,130,140,(
150
),(160
),(170
)。(2)2,4,6,8,(
10
),(12
),(14
),(16
)。(3)88,77,66,55,44,(
33
),(22
),(11
)。(4)950,900,850,800,(
750
),(700
),(650
)。答案
3. (1) 150 160 170
(2) 10 12 14 16
(3) 33 22 11
(4) 750 700 650
(2) 10 12 14 16
(3) 33 22 11
(4) 750 700 650
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