Tea box: 20x20x20=4000cm?
Box gauge: 30x30x30=27000cm?
∴ (So) 27000 divided by 4000=6 boxes ... 3000 cm?
definition
Addition: the operation of combining two numbers into one number.
Subtraction: when two addends and one of them are known, the operation of finding the other addend.
Multiplication: the operation of finding the product of two numbers.
Division: the operation of finding another factor by knowing the product of two factors and one of them.