Basic Subtraction Lesson 3: Number 3

Here's an easy example:

Orchid Box BurlyWood Box MediumSpringGreen Box Magenta Box Teal Box minus Orchid Box BurlyWood Box MediumSpringGreen Box equals Magenta Box Teal Box

We start with five boxes, take away three boxes, and now have two boxes. We take away three boxes from our five boxes to get two boxes.

Here's another example:

DeepSkyBlue Box MediumVioletRed Box DarkSeaGreen Box Coral Box CornflowerBlue Box Cyan Box Goldenrod Box Peru Box Wheat Box minus DeepSkyBlue Box MediumVioletRed Box DarkSeaGreen Box equals Coral Box CornflowerBlue Box Cyan Box Goldenrod Box Peru Box Wheat Box

We start with nine boxes, take away three boxes, and now have six boxes. We take away three boxes from our nine boxes to get six boxes.

Try this problem.

SpringGreen Box HotPink Box Sienna Box DarkOliveGreen Box Green Box MediumSeaGreen Box DarkGoldenrod Box Aqua Box Chartreuse Box MediumPurple Box minus SpringGreen Box HotPink Box Sienna Box equals DarkOliveGreen Box Green Box MediumSeaGreen Box DarkGoldenrod Box Aqua Box Chartreuse Box MediumPurple Box

We start with ten boxes, take away three boxes, and now have seven boxes.

In order to do basic subtraction, you must memorize some equations but fear not: FoxyMath will help you! When you are finished with this lesson, you will know the following equations:

  3 - 3 =   0
  4 - 3 =   1
  5 - 3 =   2
  6 - 3 =   3
  7 - 3 =   4
  8 - 3 =   5
  9 - 3 =   6
10 - 3 =   7
11 - 3 =   8
12 - 3 =   9
13 - 3 = 10
14 - 3 = 11
15 - 3 = 12

The following exercise will help you learn the above equations and what they mean. Please take your time: take whatever time you need to learn the material.

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