Addition of Single and Double Digits Worksheets
Singledigit and doubledigit numbers are fairly easier to add than adding tripledigit numbers. The addition is one of the most basic mathematical techniques that is usually taught in elementary classes. Singledigit numbers are extremely easy to be added. They can also be added on fingers; it is basic counting. However, they can also be solved in writing. There is another technique for adding singledigit numbers. It is called tally marks. In tally marks, you make bars representing digits. In tally marks, the maximum number of bars that you can draw in a set is five, and there is a rule for drawing tally marks. After making every fourth mark, you draw the fifth one diagonally or horizontally as if it is cutting the other four marks. For example, a tally mark can look like this  For the addition of doubledigit numbers; they can be added using the typical addition method.

Basic Lesson
Shows the addition of the ones and carrying into the tens columns. Also includes practice problems.
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Independent Practice 1
Contains 20 single and double digits addition problems. The answers can be found below.
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Independent Practice 2
Contains 20 single and double digits addition problems. The answer key is below.
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Homework Worksheet
12 sums of double and single problems. 4 complete examples are provided.
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Polite Math
A polite number is a positive integer that is the sum of 2 or more consecutive integers. For example, 18=3+4+5+6 and 41=20+21. Every odd number greater than one must be polite. All numbers that are powers of 2 are impolite so don't invite them over.