To estimate quotients, round the dividend and the divisor to compatible numbers.
It is most useful for finding quotients because it works with multiples.
The best way to estimate a quotient using compatible numbers is to first understand how compatible numbers work. They are numbers that are close in value to the actual numbers and are easily added, subtracted or divided.
The answers of division are called quotients.
By rounding each of the numbers involved.
535.6 divided by 35 using compatible numbers = 15.302857142857144
35000 ÷ 70 = 500
Estimate 43/81 by using compatible numbers
Compatible Numbers numbers that are easy to compute mentally are called
The products of whole numbers are always whole numbers, but the quotients -- the answers you get when you divide one number by another -- depend upon the actual numbers and which is the dividend and which is the divisor. For example, 12 divided by 3 is 4, a whole number, but 3 divided by 12 is 1/4 or 0.25, a fraction.