Basic Addition Lesson 12: Number 12

Here's an easy example:

12
+
1
=
13

+

=

DarkTurquoise Box   MidnightBlue Box   Lavender Box   Chartreuse Box   YellowGreen Box   Khaki Box   DarkBlue Box   Aqua Box   DeepSkyBlue Box   Thistle Box   RosyBrown Box   DarkSeaGreen Box  plus     BurlyWood Box  equals     DarkTurquoise Box   MidnightBlue Box   Lavender Box   Chartreuse Box   YellowGreen Box   Khaki Box   DarkBlue Box   Aqua Box   DeepSkyBlue Box   Thistle Box   RosyBrown Box   DarkSeaGreen Box   BurlyWood Box

We start with twelve boxes, add one box, and now have thirteen boxes.

Here's another example:

12
+
2
=
14

+

=

Orchid Box   Brown Box   PowderBlue Box   Tan Box   SeaGreen Box   DarkSlateBlue Box   MediumTurquoise Box   Wheat Box   DarkViolet Box   Teal Box   DodgerBlue Box   DarkGreen Box  plus     MediumVioletRed Box   DarkMagenta Box  equals     Orchid Box   Brown Box   PowderBlue Box   Tan Box   SeaGreen Box   DarkSlateBlue Box   MediumTurquoise Box   Wheat Box   DarkViolet Box   Teal Box   DodgerBlue Box   DarkGreen Box   MediumVioletRed Box   DarkMagenta Box

We start with twelve boxes, add two boxes, and now have fourteen boxes.

Try this problem.

12
+
3
=

+

=

DarkTurquoise Box   MidnightBlue Box   Lavender Box   Chartreuse Box   YellowGreen Box   Khaki Box   DarkBlue Box   Aqua Box   DeepSkyBlue Box   Thistle Box   RosyBrown Box   DarkSeaGreen Box  plus     BurlyWood Box   MediumBlue Box   Pink Box  equals     DarkTurquoise Box   MidnightBlue Box   Lavender Box   Chartreuse Box   YellowGreen Box   Khaki Box   DarkBlue Box   Aqua Box   DeepSkyBlue Box   Thistle Box   RosyBrown Box   DarkSeaGreen Box   BurlyWood Box   MediumBlue Box   Pink Box

We start with twelve boxes, add three boxes, and now have fifteen boxes.

In order to do basic addition, 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:

12 + 1 = 13
12 + 2 = 14
12 + 3 = 15
12 + 4 = 16
12 + 5 = 17
12+ 6 = 18
12 + 7 = 19
12 + 8 = 20
12 + 9 = 21
12 + 10 = 22
12 + 11 = 23
12 + 12 = 24

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.