Basic Math Examples

Popular Problems
Basic Math
Multiply 0.8*100
0.8⋅100
Step 1
Multiply using long multiplication.
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Step 1.1
Multiply 0 by 8. Place the result in the next column in the result line. There is one result line for each digit in 100.
0.8
⨯100
0
Step 1.2
Multiply 0 by 0. Place the result in the next column in the result line. There is one result line for each digit in 100.
0.8
⨯100
00
Step 1.3
Multiply 0 by 8. Place the result in the next column in the result line. There is one result line for each digit in 100.
0.8
⨯100
00
0
Step 1.4
Multiply 0 by 0. Place the result in the next column in the result line. There is one result line for each digit in 100.
0.8
⨯100
00
00
Step 1.5
Multiply 1 by 8. Place the result in the next column in the result line. There is one result line for each digit in 100.
0.8
⨯100
00
00
8
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 100.
0.8
⨯100
00
00
08
Step 1.7
Add the numbers in each column. In this case, add 0+0+0, then place the 0 in the result line.
0.8
⨯100
00
00
08
0
Step 1.8
Add the numbers in each column. In this case, add 0+0+0, then place the 0 in the result line.
0.8
⨯100
00
00
08
00
Step 1.9
Add the numbers in each column. In this case, add 0+0+8, then place the 8 in the result line.
0.8
⨯100
00
00
08
800
0.8
⨯100
00
00
08
800
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 1, so the answer must have 1 decimal places as well.
80
 [x2  12  π  ∫⁡xdx ]