| A | B |
| compatible numbers | numbers that are easy to mentally compute |
| dividend | the number that is to be divided in a division problem |
| divisor | the number that divides the dividend |
| estimate | to find a number that is close to an exact amount |
| factor | a number multiplied by another number to find a product |
| partial quotient | a method of dividing in which multiples of the divisor are subtracted from the dividend and then the quotients are added together |
| product | the answer to a multiplication problem |
| quotient | the number, not including the remainder, that results from dividing |
| remainder | the amount left over when a number cannot be divided equally |