Evaluate 0.2*40

Math
0.2⋅40
Multiply using long multiplication.
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Multiply 0 by 2. Place the result in the next column in the result line. There is one result line for each digit in 40.
0.2
⨯40
0
Multiply 0 by 0. Place the result in the next column in the result line. There is one result line for each digit in 40.
0.2
⨯40
00
Multiply 4 by 2. Place the result in the next column in the result line. There is one result line for each digit in 40.
0.2
⨯40
00
8
Multiply 4 by 0. Place the result in the next column in the result line. There is one result line for each digit in 40.
0.2
⨯40
00
08
Add the numbers in each column. In this case, add 0+0, then place the 0 in the result line.
0.2
⨯40
00
08
0
Add the numbers in each column. In this case, add 0+8, then place the 8 in the result line.
0.2
⨯40
00
08
80
0.2
⨯40
00
08
80
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.
8
Evaluate 0.2*40

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