Basic Subtraction Lesson 3: Number 3

Here's an easy example:

Aqua Box DarkViolet Box Teal Box Wheat Box DarkSeaGreen Box minus Aqua Box DarkViolet Box Teal Box equals Wheat Box DarkSeaGreen 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:

RosyBrown Box DarkBlue Box OliveDrab Box LimeGreen Box MediumBlue Box PowderBlue Box DarkKhaki Box Gold Box SeaGreen Box minus RosyBrown Box DarkBlue Box OliveDrab Box equals LimeGreen Box MediumBlue Box PowderBlue Box DarkKhaki Box Gold Box SeaGreen 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.

DarkOrange Box Blue Box Cyan Box DarkTurquoise Box ForestGreen Box Lavender Box Goldenrod Box MidnightBlue Box Olive Box SaddleBrown Box minus DarkOrange Box Blue Box Cyan Box equals DarkTurquoise Box ForestGreen Box Lavender Box Goldenrod Box MidnightBlue Box Olive Box SaddleBrown 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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