add up to
US /æd ʌp tuː/
UK /æd ʌp tuː/

1.
2.
cuadrar, tener sentido
to make sense or seem reasonable
:
•
His story just doesn't add up to me.
Su historia simplemente no me cuadra.
•
There's something about this situation that doesn't quite add up.
Hay algo en esta situación que no me cuadra del todo.