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02三位數的加減04加減估算(選擇02)
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年級
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20 points
Choose
1
2
3
4
5
6
7
8
9
其他
班級
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20 points
Choose
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
其他
座號
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20 points
Choose
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
其他
5. 估估看，哪一個數最接近51＋42的正確答案？
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10 points
70
80
90
6. 估估看，哪一個數最接近42＋37的正確答案？
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10 points
80
90
70
7. 估估看，哪一個數最接近28＋31的正確答案？
*
10 points
60
50
70
8. 估估看，哪一個數最接近91－32的正確答案？
*
10 points
40
50
60
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