Algebra Examples

Evaluate 13*8
138
Step 1
Multiply using long multiplication.
Tap for more steps...
Step 1.1
Multiply 8 by 3. Place the ones digit (4) in the result line and carry the tens digit (2). There is one result line for each digit in 8.
2
13
8
4
Step 1.2
Multiply 8 by 1 and add the carried 2. Place the ones digit (0) in the result line and carry the tens digit (1). There is one result line for each digit in the 8.
13
8
104
Step 1.3
Add the numbers in each column. In this case, add 4, then place the 4 in the result line.
13
8
104
4
Step 1.4
Add the numbers in each column. In this case, add 0, then place the 0 in the result line.
13
8
104
04
Step 1.5
Add the numbers in each column. In this case, add 1, then place the 1 in the result line.
13
8
104
104
13
8
104
104
Step 2
The result of 138 is 104.
104
 [x2  12  π  xdx ]