Multiplication, Division, and Whole Numbers

Background

We've got Multiplication, Division, and Whole Numbers, so now let's work a problem (there are more in the Practice Problem section).

Question

Find 

Answer

Analysis

Let's first approach this using the Order of Operations. Note that the numerator (top set of terms in the fraction) and the denominator (bottom set of terms in the fraction) act as large brackets, so we don't do the division until we work the operations on the top and bottom.

Let's work the numerator first. Note that there's a bracket (coloured in red), so we work that first:

(4 + 2) x 8

(6) x 8

and now we can work the multiplication:

6 x 8 = 48

Now let's work the denominator. I'll colour the bracket again:

4 x (5 + 7)

4 x (12)

and now we can work the multiplication:

4 x 12 = 48

And now we can work the division:



Vocabulary used:

• Whole Numbers - The set of numbers that start at 0 and increase by 1 (0, 1, 2, 3,...)

For more information check out these links (comment to add your favourite link):

Where might you have come from?

Fact-orials Index

Numbers:

• Whole Numbers

Operations:

• Multiplication
• Division
• Order of Operations (PEDMAS)

Operations with different kinds of numbers:

• Addition, Subtraction, and Whole Numbers
• Addition, Subtraction, and Whole Numbers - Practice Problems

Where might we go?

Numbers:

• Fractions and Decimals

Operations with different kinds of numbers:

• Multiplication, Division, and Whole Numbers - Practice Problems
• Multiplication, Division, and Integers