期末口试题(一年下).doc

一、 速算：
60 + 30 = 70 + 20 = 50 + 20 = 10 + 40 = 90 – 20 =
80 – 50 = 60 – 50 = 30 + 40 = 70 – 50 = 20 + 60 =
90 – 30 = 30 + 40 = 60 – 10 = 30 + 60 = 80 – 40 =
50 + 20 = 80 – 30 = 50 + 30 = 70 – 20 = 10 + 80 =
32 + 5 = 5 + 74 = 78 – 6 = 4 + 65 = 66 – 3 =
26 + 3 = 72 + 5 = 44 – 4 = 88 – 5 = 67 – 2 =
83 + 6 = 47 – 5 = 42 + 3 = 62 + 5 = 7 + 40 =
68 + 30 = 56 + 40 = 75 – 40 = 45 + 20 = 98 – 80 =
66 – 60 = 74 – 50 = 30 + 48 = 30 + 50 = 64 – 4 =
38 + 20 = 37 – 30 = 58 -- 5 = 6 + 72 = 4 + 44 =
4 + 62 = 33 + 6 = 26 + 40 = 36 – 4 = 20 + 19 =
99 – 60 = 12 + 20 = 40 + 20 = 30 + 2 = 31 + 7 =
42 + 34 = 23 + 32 = 54 – 23 = 25 + 40 = 76 – 4 =
52 + 3 = 68 – 11 = 80 + 16 = 40 + 16 = 76 – 14 =
58 – 6 = 67 – 30 = 14 + 22 = 20 + 43 = 84 – 40 =
96 – 51 = 55 + 3 = 99 – 35 = 56 + 23 = 65 + 34 =
78 – 32 = 58 + 7 = 5 + 49 = 5 + 32 = 23 + 7 =
38 + 6 = 46 + 5 = 8 + 27 = 88 + 6 = 35 + 8 =
33 – 9 = 32 – 3 = 70 – 7 = 53 – 6 = 47 – 8 =
56 + 4 = 6 + 37 = 42 – 6 = 50 – 3 = 54 – 8 =
二，说算理：
请你说出下面各题的计算方法：
60 + 30 = 90 – 20 = 32 + 5 = 78 – 6 = 68 + 30 = 75 – 40 = 23 + 32 = 54 – 23 = 6 + 37 = 42 – 6 =
80 – 16 = 23 + 17 =
请说说下面各题错在哪：
4 5 2 4 7
+ 5 3 -- 8 + 8
9 3 5 4 4 5
请你说出下面各题的运算顺序：
24 + 29 + 44 89 – 36 – 27 39 – 13 + 47 56 + 21 – 34
请根据下面的条件提出数学问题并解答：
书包 --- 44元 文具盒 --- 18元