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빈 칸에 알맞은 수를 넣으세요.
1
9 + 9 × 12 + 2 - 7 = 9 +108 +2 -7 = 117 +2 -7 = 119 -7 = 112 2
11 × 2 - 12 + 14 × 4 =-+× =-+ =+ = 3
3 + 3 × 8 - 14 + 2 =+-+ =-+ =+ = 4
14 × 8 - 3 + 15 + 6 =-++ =++ =+ = 5
15 × 11 × 5 - 14 + 12 =×-+ =-+ =+ = 6
15 + 15 × 11 - 8 + 8 =+-+ =-+ =+ = 7
4 + 14 + 7 × 10 - 11 =++- =+- =- = 8
13 + 13 × 12 + 15 - 7 =++- =+- =- = |