Transcript multiplication arrays

MULTIPLICATION ARRAYS
MULTIPLICATION ARRAYS
Array – a group of objects arranged in rows and
columns
 A rectangular array is an arrangement of objects
in rows and columns. Each row has the same
number of objects, and each column has the same
number of objects.
 A rectangular array can be represented by a
multiplication number model
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}
6 * 3 = 18
MULTIPLICATION ARRAYS
The some array can be organized in several
different ways.
 Rectangular arrays must have the same number
in each row and the same number in each column.
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}
or
18 * 1 = 18
9 * 2 = 18
MULTIPLICATION ARRAYS
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Organizing a rectangular multiplication array ,
you can find the factors of a number.
How many different ways can you organize 36?
Use the dot grid paper to show your work
36 can be organized in the following arrays:
36 * 1
6 * 6 This is a square array
9*4
12 * 3
2 * 18
MULTIPLICATION ARRAYS
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36 can be organized in the following arrays:
36 * 1
6*6
9*4
12 * 3
2 * 18
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These are the factors of 36 or all of the numbers that, when
multiplied together, create the product of 36
1, 2, 3, 4, 6, 9, 12, 18, 36
MULTIPLICATION ARRAYS
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36 can be organized in the following arrays:
6
{
6{
36 * 1
6 * 6 This is a square array
9*4
12 * 3
2 * 18
Multiplication Arrays
Square Arrays show you square numbers
 Square numbers can be written with an exponent
 6²
 This means 6 times itself 2 times or 6 * 6
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Use your dot grid paper to find more square
arrays
 Write your array equation using exponential
notation
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