An awesome maths birthday card for your number crunching math nerd!
The card shows the equation for the ceiling function in mathematics, paired with a great caption "raise the roof it's your birthday"
Perfect for the maths student or teacher, or anyone who loves numbers and equations.
Greeting: raise the roof it's your birthday
Size: 5.5 x 4.25 in (14 x 10.8 cm)
Quantity: 1 card with envelope
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