What is longmult 60*12 ?

The solution to longmult 60*12 is 720

Multiply 60*12

longmult

720

Solution steps

60 \cdot 12

Line up the numbers

\times 6102

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 6102

Mutliply the bold numbers:

0 \cdot 2 = 0

\frac{\times 6 1 0 2}{0}

Mutliply the bold numbers:

6 \cdot 2 = 12

Carry

1

to the column on the left and write

2

in the result line

\frac{\times 1 6 1 0 2}{2 0}

Add the carried digit,

1

, to the result

\frac{\times 1 6 1 0 2}{1 2 0}

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

\frac{\times 6 1 0 2}{1 2 0}

Mutliply the bold numbers:

0 \cdot 1 = 0

\frac{\times 6 1 0 2}{1 2 0 0}

Mutliply the bold numbers:

6 \cdot 1 = 6

\frac{\times 6 1 0 2}{1 6 2 0 0}

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

\frac{\times 6 1 0 2}{1 6 2 0 0 0}

120 + 600 = 720

+ 162000

Add the digits of the bolded column:

0 + 0 = 0

\frac{+ 1 6 2 0 0 0}{+ 0}

Add the digits of the bolded column:

2 + 0 = 2

\frac{+ 1 6 2 0 0 0}{+ 2 0}

Add the digits of the bolded column:

1 + 6 = 7

\frac{+ 1 6 2 0 0 0}{+ 7 2 0}

= 720

= 720