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Ce numere se descompun astfel

____9x100+2x10+7x1

____=8x10+6x10+4x1

____9x100+8x10+5x1

____=2x100+2x10+2x1

Coloana(b)

____=5x100±7x10+7x1

____7x100+9x10+4x1

____6x100+6x10+3x1
.
____=3x100+9x10+7x1

Urgent


Răspuns :

Răspuns:

coloana a

1) 927

2) 144

3) 985

4) 222

Coloana b

1) 577

2) 794

3) 663

4) 397