Extending whole number operations vocabulary

a method for estimating a group of numbers by slightly adjusting some or all of the numbers to allow for easy mental computation

the number the dividend is being divided by

a method for adjusting an estimate to draw closer to an exact calculation

reasoning to determine an approximate value

the set of positive numbers that begins at one and increases by increments of one each time {1, 2, 3, ..., n}

a number multiplied by another number to find a product

the number that is being divided

efficient application of procedures with accuracy

a method for estimating a number in which the first digit of a number is retained and all remaining digits are changed to zero

the total when two or more factors are multiplied