Basic Math Examples

Popular Problems
Basic Math
Multiply 300*0.4
300⋅0.4
Step 1
Multiply using long multiplication.
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Step 1.1
Multiply 4 by 0. Place the result in the next column in the result line. There is one result line for each digit in 0.4.
300
×0.4
0
Step 1.2
Multiply 4 by 0. Place the result in the next column in the result line. There is one result line for each digit in 0.4.
300
×0.4
00
Step 1.3
Multiply 4 by 3. Place the ones digit (2) in the result line and carry the tens digit (1). There is one result line for each digit in 0.4.
300
×0.4
1200
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 0.4.
300
×0.4
1200
0
Step 1.5
Multiply 0 by 0. Place the result in the next column in the result line. There is one result line for each digit in 0.4.
300
×0.4
1200
00
Step 1.6
Multiply 0 by 3. Place the result in the next column in the result line. There is one result line for each digit in 0.4.
300
×0.4
1200
000
Step 1.7
Add the numbers in each column. In this case, add 0+0, then place the 0 in the result line.
300
×0.4
1200
000
0
Step 1.8
Add the numbers in each column. In this case, add 0+0, then place the 0 in the result line.
300
×0.4
1200
000
00
Step 1.9
Add the numbers in each column. In this case, add 2+0, then place the 2 in the result line.
300
×0.4
1200
000
200
Step 1.10
Add the numbers in each column. In this case, add 1+0, then place the 1 in the result line.
300
×0.4
1200
000
1200
300
×0.4
1200
000
1200
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.
120
 ⎡⎢⎣x2  12  √π  ∫xdx ⎤⎥⎦