Today's math lesson

x ( a + b ) = GIANTmess

where
x = a full container of Johnson's baby power
a = toddler in bedroom for nap time
b =  uncanny climbing ability

Please note that the amount of mess is proportionate to the creative ability of the toddler and the amount of fluids remaining in their drinking receptacle.

Mother's happiness is said to be inversly related to such an incident.