Basic Math Examples

Popular Problems
Basic Math
Multiply 0.80*80
0.8⋅800.8⋅80
Step 1
Multiply using long multiplication.
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Step 1.1
Multiply 0 by 0. Place the result in the next column in the result line. There is one result line for each digit in 80.
0.80
⨯80
0
Step 1.2
Multiply 0 by 8. Place the result in the next column in the result line. There is one result line for each digit in 80.
0.80
⨯80
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 80.
0.80
⨯80
000
Step 1.4
Multiply 8 by 0. Place the result in the next column in the result line. There is one result line for each digit in 80.
0.80
⨯80
000
0
Step 1.5
Multiply 8 by 8. Place the ones digit (4) in the result line and carry the tens digit (6). There is one result line for each digit in 80.
6
0.80
⨯80
000
40
Step 1.6
Multiply 8 by 0 and add the carried 6. Place the result in the next column in the result line. There is one result line for each digit in 80.
0.80
⨯80
000
640
Step 1.7
Add the numbers in each column. In this case, add 0+0, then place the 0 in the result line.
0.80
⨯80
000
640
0
Step 1.8
Add the numbers in each column. In this case, add 0+0, then place the 0 in the result line.
0.80
⨯80
000
640
00
Step 1.9
Add the numbers in each column. In this case, add 0+4, then place the 4 in the result line.
0.80
⨯80
000
640
400
Step 1.10
Add the numbers in each column. In this case, add 0+6, then place the 6 in the result line.
0.80
⨯80
000
640
6400
0.80
⨯80
000
640
6400
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.
64
 [x2  12  √π  ∫xdx ]