What is longmult 15\times 10 ?

The solution to longmult 15\times 10 is 150

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longmult 15\times 10

long multiplication

15 \cdot 10

150

Solution steps

15 \cdot 10

Line up the numbers

\times 1150

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 1150

Mutliply the bold numbers:

5 \cdot 0 = 0

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

Mutliply the bold numbers:

1 \cdot 0 = 0

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

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

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

Mutliply the bold numbers:

5 \cdot 1 = 5

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

Mutliply the bold numbers:

1 \cdot 1 = 1

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

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

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

0 + 150 = 150

= 150

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