50 yuan -7 yuan 50-7.5 in the first grade of primary school = - Training Enrollment Network

50 yuan -7 yuan 50-7.5 in the first grade of primary school =

1 yuan = 10 angle.

50 yuan -7 yuan 5 jiao

=49 yuan+1 yuan -7 yuan -5 jiao.

=49 yuan -7 yuan+10 angle -5 angle.

=42 yuan +5 jiao

=42 yuan 5 jiao

50-7.5

=42.5 yuan

Thank you. Please accept it.

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