What is longmult 13\times 13 ?

The solution to longmult 13\times 13 is 169

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longmult 13\times 13

long multiplication

13 \cdot 13

169

Solution steps

13 \cdot 13

Line up the numbers

\times 1133

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 1133

Mutliply the bold numbers:

3 \cdot 3 = 9

\frac{\times 1 1 3 3}{9}

Mutliply the bold numbers:

1 \cdot 3 = 3

\frac{\times 1 1 3 3}{3 9}

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

\frac{\times 1 1 3 3}{3 9}

Mutliply the bold numbers:

3 \cdot 1 = 3

\frac{\times 1 1 3 3}{3 3 9}

Mutliply the bold numbers:

1 \cdot 1 = 1

\frac{\times 1 1 3 3}{1 3 3 9}

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

\frac{\times 1 1 3 3}{0 1 3 3 9 0}

39 + 130 = 169

= 169

\frac{7}{28}

\frac{x ^{2} + 8 x + 15}{x + 3}

(x^{2} - 3 y)^{3}

(2 n + 1)^{3}

(9 x^{2} - 5 x) - (- 3 x - 8)