How to Write Math Arrays

Arrays illustrate math lessons with pictures or shapes.
••• shironosov/iStock/Getty Images

A math array is a way of writing multiplication expressions in terms of columns and rows of pictures or symbols that represent counting entities. It is a pictorial way to represent math facts. You can use symbols, such as circles, squares or triangles, to write math facts in arrays. The number of columns is the first number in the math equation; the number of rows is the second number in the math equation. The answer is the total number of all symbols. Arrays can make learning math easier for visual learners.

    Come up with a math fact you want to symbolize with an array. For example, 4 x 3, with "X" as the symbol.

    Use the first number to determine how many symbols to draw in the columns. In the example, the first number is 4, so draw four Xs to represent the number of columns: XXXX.

    Use the second number in the fact to determine the number of rows. The second number in the example is 3, so draw three rows of four Xs: XXXX XXXX XXXX

    Count by columns or by rows to get the answer, which in this case is 12.

    Tips

    • This is a good way to teach visual learners about the multiplication process.

Related Articles

How to Teach Multiplication to the Second Grade Using...
Definition of Mean, Median & Mode
How to Graph Parabolas on a TI-84 Calculator
How to Divide Rational Numbers
The Four Types of Multiplication Properties
How to Find the Height of a Rectangular Pyramid
How to Calculate Arctan
How to Find the Area of Squares
What Is a Mathematical Expression?
How to Factor Binomial Cubes
How to Find the Line of Symmetry in a Quadratic Equation
Definition of Successor and Predecessor in Math
How to Calculate the Percentage of Another Number
How to Draw Counters in Math
How to Draw an Array in Math
How to Do Exponents on the TI-30XIIS
How to Solve for X in the Numerator
How to Determine the Distance Between Two Numbers on...
How to Divide Decimals for 5th Grade
What is Pascal's Triangle?

Dont Go!

We Have More Great Sciencing Articles!