□に入る数字を いいましょう 1+2+□ =6 1+□+3 =6 □+2+3 =6 1+2+□ =8 1+□+5 =8 3+6+□ =12 3+□+3 =12 1+□+5 =10 5+5+□ =15 □+5+5 =16 □+2+8 =14 4+2+□ =14 □+3+9 =17 □+8+2 =17 9+9+□ =27 9+□+7 =24
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