Understanding Multiplication through Arrays
Learn about arrays as a visual representation of multiplication, factors, and multiples. Discover how dimensions, factors, and products are related in the context of mathematics. Explore prime, composite, and square numbers through arrays.
Understanding Multiplication through Arrays
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Presentation Transcript
Multiplication Accelerated Math Block 1
Array • An array represents a multiplication expression: • What name would you give this array? • How many are in this array? • The dimensions are its factors.
An array is an arrangement of objects in rows and columns. It is a representation of multiplication. • Multiplication is the process of finding the total number of items when given the number of groups and the number in each group. It is repeated addition. • A dimension is a measure of one direction. • A factor is a whole number that divides exactly into another number. It is the number you count by when you skip count.
A prime number is a number greater than 1 that has only two factors; 1 and itself. • A composite number is a number with more than two factors. • A square number is a number that results from multiplying a number by itself and is represented in an array that is the shape of a square.
The product is the total amount when the number of groups and number in a group are multiplied. It is the result when two factors are multiplied. • A multiplication combination is an expression of factors and their products. Example: 6 x 8 = 48