Question

aflarea numărului necunoscut:
ex.1 : a+(14.029+76.343)=230.495
ex2:. a-(53.870+92.146)=143.867
ex3:. (214.987+58.013)-a=187.685
ex4:. a-(365.478-278.073)=212.454

REPEDEEE,va roggg

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Answer 1

a+14.029 =240.495+26.343

a+14.029=306.838

a=292.809

a-53.870=143.867-92.146

a-53.870=51721

a=51.721+53.870=

a=105.591

a-214.987=187.685+58.013

a-214.987=129.672

a=129.672+214.987

a=344.659

a-365.478=212.454-278.073

a-365.478=490.527

a=490.527+365.478

a=856.005