# 3rd grade math Unit 4

## 18 terms

### multiplication - division diagram

a set of boxes for tracking the number of groups, the numbers in each group, and the total in a number story

### multiples of equal groups

several sets of the same amount of groups

### multiplication

finds the total number of objects in several equal groups

### product

the result of multiplying two numbers, called factors

### array

an arrangement of objects in a regular pattern, usually rows and columns

### remainder

an amount left over when one number is divided by another number

### divisor

in division, the number that divides another number, the dividend

### dividend

the number in division that is being divided

### quotient

the result of dividing one number by another number.

### square numbers

figurate numbers that are the product of a counting number and itself

### turn - around shortcut

write several fact phrases for small numbers and pair each fact with its turn around, or commutative partner

### product

the result of multiplying two numbers, called factors

### scale factor

the ratio of lengths on an image and corresponding lengths on a preimage in a size change

### map scale

the ratio of a distance on a map, globe, or drawing to an actual distance

### tails

one side of a coin