Basic Math Examples

Evaluate 0.25*10
0.2510
Step 1
Multiply using long multiplication.
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Step 1.1
Multiply 0 by 5. Place the result in the next column in the result line. There is one result line for each digit in 10.
0.25
10
0
Step 1.2
Multiply 0 by 2. Place the result in the next column in the result line. There is one result line for each digit in 10.
0.25
10
00
Step 1.3
Multiply 0 by 0. Place the result in the next column in the result line. There is one result line for each digit in 10.
0.25
10
000
Step 1.4
Multiply 1 by 5. Place the result in the next column in the result line. There is one result line for each digit in 10.
0.25
10
000
5
Step 1.5
Multiply 1 by 2. Place the result in the next column in the result line. There is one result line for each digit in 10.
0.25
10
000
25
Step 1.6
Multiply 1 by 0. Place the result in the next column in the result line. There is one result line for each digit in 10.
0.25
10
000
025
Step 1.7
Add the numbers in each column. In this case, add 0+0, then place the 0 in the result line.
0.25
10
000
025
0
Step 1.8
Add the numbers in each column. In this case, add 0+5, then place the 5 in the result line.
0.25
10
000
025
50
Step 1.9
Add the numbers in each column. In this case, add 0+2, then place the 2 in the result line.
0.25
10
000
025
250
0.25
10
000
025
250
Step 2
To find the number of decimal places needed in the answer, add the number of decimal places in the multiplier and multiplicand. In this case, there is a total of 2, so the answer must have 2 decimal places as well.
2.5
 [x2  12  π  xdx ]