What is longmult 100*100 ?

The solution to longmult 100*100 is 10000

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longmult 100*100

long multiplication

100 \cdot 100

10000

Solution steps

100 \cdot 100

Line up the numbers

\times 110000

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 110000

Mutliply the bold numbers:

0 \cdot 0 = 0

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

Mutliply the bold numbers:

0 \cdot 0 = 0

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

Mutliply the bold numbers:

1 \cdot 0 = 0

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

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

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

Mutliply the bold numbers:

0 \cdot 0 = 0

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

Mutliply the bold numbers:

0 \cdot 0 = 0

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

Mutliply the bold numbers:

1 \cdot 0 = 0

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

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

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

Mutliply the bold numbers:

0 \cdot 1 = 0

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

Mutliply the bold numbers:

0 \cdot 1 = 0

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

Mutliply the bold numbers:

1 \cdot 1 = 1

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

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

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

0 + 0 + 10000 = 10000

+ 001000000000000