Basic Math Examples

Evaluate 216*6
21662166
Step 1
Multiply using long multiplication.
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Step 1.1
Multiply 66 by 66. Place the ones digit (6)(6) in the result line and carry the tens digit (3)(3). There is one result line for each digit in 66.
33
221166
×66
66
Step 1.2
Multiply 66 by 11 and add the carried 33. Place the result in the next column in the result line. There is one result line for each digit in 66.
33
221166
×66
9966
Step 1.3
Multiply 66 by 22. Place the ones digit (2)(2) in the result line and carry the tens digit (1)(1). There is one result line for each digit in 66.
221166
×66
11229966
Step 1.4
Add the numbers in each column. In this case, add 66, then place the 66 in the result line.
221166
×66
11229966
66
Step 1.5
Add the numbers in each column. In this case, add 99, then place the 99 in the result line.
221166
×66
11229966
9966
Step 1.6
Add the numbers in each column. In this case, add 22, then place the 22 in the result line.
221166
×66
11229966
229966
Step 1.7
Add the numbers in each column. In this case, add 11, then place the 11 in the result line.
221166
×66
11229966
11229966
221166
×66
11229966
11229966
Step 2
The result of 21662166 is 12961296.
12961296
 [x2  12  π  xdx ]  x2  12  π  xdx