


Decimal ArithmeticAdditionWe assume that you are familiar with the decimal number system and arithmetical operations on integers (whole numbers). Two decimal numbers may be added as follows:
Note that we can assume all numbers to be added have the same number of digits after decimal point, as adding zeros at the end of a decimal number does not change the value of the number. For example,
Example 1A.Let us calculate: 123.45 + 37.50 Example 1B.Each time you click "New Example" a new example will be shown. Click "=" to see the answer.
Exercise 1.Perform the following additions without using a calculator:
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