He tātaitanga, he āta whakaaroaro rānei kia wawe te kite i tētahi otinga āwhiwhi. Kāore e tōtika pū te otinga, engari kei te takiwā tonu o te otinga tōtika. I te nuinga o te wā, ko te whakaawhiwhi tētahi wāhanga o te whakatau tata.
A calculation or consideration in order to quickly get an approximate answer. An estimate is not exact, but is in the vicinity of the exact answer. Estimation usually involves rounding.