What is longmult 12*30 ?

The solution to longmult 12*30 is 360

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Multiply 12*30

long multiplication

12 \cdot 30

360

Solution steps

12 \cdot 30

Line up the numbers

\times 1320

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 1320

Mutliply the bold numbers:

2 \cdot 0 = 0

\frac{\times 1 3 2 0}{0}

Mutliply the bold numbers:

1 \cdot 0 = 0

\frac{\times 1 3 2 0}{0 0}

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

\frac{\times 1 3 2 0}{0 0}

Mutliply the bold numbers:

2 \cdot 3 = 6

\frac{\times 1 3 2 0}{0 6 0}

Mutliply the bold numbers:

1 \cdot 3 = 3

\frac{\times 1 3 2 0}{3 0 6 0}

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

\frac{\times 1 3 2 0}{0 3 0 6 0 0}

0 + 360 = 360

+ 030600

Add the digits of the bolded column:

0 + 0 = 0

\frac{+ 0 3 0 6 0 0}{+ 0}

Add the digits of the bolded column:

0 + 6 = 6

\frac{+ 0 3 0 6 0 0}{+ 6 0}

Add the digits of the bolded column:

0 + 3 = 3

\frac{+ 0 3 0 6 0 0}{+ 3 6 0}

= 360

= 360

9/ (7/6)

\frac{4}{9}

t h e \frac{32}{60}

21 x^{2}

40