Basic Subtraction Lesson 4: Number 4

Here's an easy example:

5
-
4
=
1

-

=

SandyBrown Box   Empty Box   Plum Box   Tan Box   MediumVioletRed Box  minus     SandyBrown Box   Empty Box   Plum Box   Tan Box  equals     MediumVioletRed Box

We start with five boxes, take away four boxes, and now have one box. We take away four boxes from our five boxes to get one box.

Here's another example:

11
-
4
=
7

-

=

DarkTurquoise Box   GreenYellow Box   Turquoise Box   Chartreuse Box   ForestGreen Box   DarkBlue Box   Olive Box   Lavender Box   DarkCyan Box   SpringGreen Box   MediumBlue Box  minus     DarkTurquoise Box   GreenYellow Box   Turquoise Box   Chartreuse Box  equals     ForestGreen Box   DarkBlue Box   Olive Box   Lavender Box   DarkCyan Box   SpringGreen Box   MediumBlue Box

We start with eleven boxes, take away four boxes, and now have seven boxes. We take away four boxes from our eleven boxes to get seven boxes.

Try this problem.

12
-
4
=

-

=

Purple Box   HotPink Box   DarkSlateBlue Box   DarkGreen Box   SlateBlue Box   DodgerBlue Box   Aquamarine Box   DarkMagenta Box   PowderBlue Box   Chocolate Box   YellowGreen Box   Peru Box  minus     Purple Box   HotPink Box   DarkSlateBlue Box   DarkGreen Box  equals     SlateBlue Box   DodgerBlue Box   Aquamarine Box   DarkMagenta Box   PowderBlue Box   Chocolate Box   YellowGreen Box   Peru Box

We start with twelve boxes, take away four boxes, and now have eight 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:

4 - 4 =   0
5 - 4 =   1
6 - 4 =   2
7 - 4 =   3
8 - 4 =   4
9 - 4 =   5
10 - 4 =   6
11 - 4 =   7
12 - 4 =   8
13 - 4 =   9
14 - 4 = 10
15 - 4 = 11
16 - 4 = 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.