Basic Math Examples

813
Step 1
Multiply using long multiplication.
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Step 1.1
Multiply 3 by 8. Place the ones digit (4) in the result line and carry the tens digit (2). There is one result line for each digit in 13.
8
13
24
Step 1.2
Multiply 1 by 8. Place the result in the next column in the result line. There is one result line for each digit in 13.
8
13
24
8
Step 1.3
Add the numbers in each column. In this case, add 4+0, then place the 4 in the result line.
8
13
24
8
4
Step 1.4
Add the numbers in each column. In this case, add 2+8, then place the 0 in the result line and carry the 1.
8
13
24
8
104
8
13
24
8
104
Step 2
The result of 813 is 104.
104
 [x2  12  π  xdx ]