What is longmult 10.5*20 ?

The solution to longmult 10.5*20 is 210

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Popular >

Multiply 10.5*20

Solution

long multiplication

10.5 \cdot 20

Solution

210

Solution steps

10.5 \cdot 20

Multiply without the decimal points, then put the decimal point in the answer

105 \cdot 20 = 2100

105 \cdot 20

Line up the numbers

\times 10250

Multiply the top number by the bottom number one digit at a time starting with the ones digit (from right to left)

Multiply the top number by the bolded digit of the bottom number

\times 10250

Mutliply the bold numbers:

5 \cdot 0 = 0

\frac{\times 1 0 2 5 0}{0}

Mutliply the bold numbers:

0 \cdot 0 = 0

\frac{\times 1 0 2 5 0}{0 0}

Mutliply the bold numbers:

1 \cdot 0 = 0

\frac{\times 1 0 2 5 0}{0 0 0}

Multiply the top number by the bolded digit of the bottom number

\frac{\times 1 0 2 5 0}{0 0 0}

Mutliply the bold numbers:

5 \cdot 2 = 10

Carry

1

to the column on the left and write

0

in the result line

\frac{\times 1 1 0 2 5 0}{0 0 0 0}

Add the carried number to the multiplication:

1 + 0 \cdot 2 = 1

\frac{\times 1 1 0 2 5 0}{0 1 0 0 0}

Mutliply the bold numbers:

1 \cdot 2 = 2

\frac{\times 1 1 0 2 5 0}{2 0 1 0 0 0}

Add the rows to get the answer. For simplicity, fill in trailing zeros

\frac{\times 1 0 2 5 0}{0 2 0 1 0 0 0 0}

0 + 2100 = 2100

+ 02010000

Add the digits of the bolded column:

0 + 0 = 0

\frac{+ 0 2 0 1 0 0 0 0}{+ 0}

Add the digits of the bolded column:

0 + 0 = 0

\frac{+ 0 2 0 1 0 0 0 0}{+ 0 0}

Add the digits of the bolded column:

0 + 1 = 1

\frac{+ 0 2 0 1 0 0 0 0}{+ 1 0 0}

Add the digits of the bolded column:

0 + 2 = 2

\frac{+ 0 2 0 1 0 0 0 0}{+ 2 1 0 0}

= 2100

= 2100

10.5

has

1

decimal place

20

has

0

decimal places

= 210.0

Refine

= 210

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Frequently Asked Questions (FAQ)

What is longmult 10.5*20 ?
The solution to longmult 10.5*20 is 210