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3
5
8
9
6
根据图片,以下哪个算式是正确的?
7-3=4
4-3=7
3-4=7
7-4=3
9-9=
0
1
2
15-7=
7
10
8 + 10 = (a)
7+8=
12
13
14
15
3 + 3 = 6
4 + 1 = 5
2 + 3 = 5
9 - 5 = 4
9 - 4 = 5
4 + 5 = 9
8+5=8+5=8+5=
11
10+2=10+2=10+2=
16
12 - 4 =
14 - 6 =
9+6=?
13
15
17
19
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