1 2 3 4 5 =5.1 1 2 3 4 5 =51 5 4 3 2 1 =51 添加适当的符号,使等式成立

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1 2 3 4 5 =5.1 1 2 3 4 5 =51 5 4 3 2 1 =51 添加适当的符号,使等式成立

1 2 3 4 5 =5.1 1 2 3 4 5 =51 5 4 3 2 1 =51 添加适当的符号,使等式成立
1 2 3 4 5 =5.1 1 2 3 4 5 =51 5 4 3 2 1 =51 添加适当的符号,使等式成立

1 2 3 4 5 =5.1 1 2 3 4 5 =51 5 4 3 2 1 =51 添加适当的符号,使等式成立
1÷ (2x 3 +4 )+5 =5.1
1+( 2 x3 +4 )x5 =51
5 x(4+ 3x 2) +1 =51