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빈 칸에 알맞은 수를 넣으세요.
1
11 × 2 - 12 + 14 - 8 = 22 -12 +14 -8 = 10 +14 -8 = 24 -8 = 16 2
14 - 3 + 15 × 3 + 5 =-++ =++ =+ = 3
10 × 4 - 12 + 3 - 7 =-+- =+- =- = 4
14 - 3 + 15 + 4 × 12 =-++ =++ =+ = 5
14 × 15 + 14 - 8 × 10 =+-× =+- =- = 6
7 × 9 + 7 - 10 + 13 =+-+ =-+ =+ = 7
3 + 6 × 15 + 3 - 14 =++- =+- =- = 8
4 + 2 × 9 × 7 - 12 =+×- =+- =- = |