What is longmult 3.14*12 ?

The solution to longmult 3.14*12 is 37.68

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Multiply 3.14*12

long multiplication

3.14 \cdot 12

37.68

Solution steps

3.14 \cdot 12

Multiply without the decimal points, then put the decimal point in the answer

314 \cdot 12 = 3768

314 \cdot 12

Line up the numbers

\times 31142

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 31142

Mutliply the bold numbers:

4 \cdot 2 = 8

\frac{\times 3 1 1 4 2}{8}

Mutliply the bold numbers:

1 \cdot 2 = 2

\frac{\times 3 1 1 4 2}{2 8}

Mutliply the bold numbers:

3 \cdot 2 = 6

\frac{\times 3 1 1 4 2}{6 2 8}

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

\frac{\times 3 1 1 4 2}{6 2 8}

Mutliply the bold numbers:

4 \cdot 1 = 4

\frac{\times 3 1 1 4 2}{6 2 4 8}

Mutliply the bold numbers:

1 \cdot 1 = 1

\frac{\times 3 1 1 4 2}{6 1 2 4 8}

Mutliply the bold numbers:

3 \cdot 1 = 3

\frac{\times 3 1 1 4 2}{3 6 1 2 4 8}

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

\frac{\times 3 1 1 4 2}{0 3 6 1 2 4 8 0}

628 + 3140 = 3768

+ 03612480

Add the digits of the bolded column:

8 + 0 = 8

\frac{+ 0 3 6 1 2 4 8 0}{+ 8}

Add the digits of the bolded column:

2 + 4 = 6

\frac{+ 0 3 6 1 2 4 8 0}{+ 6 8}

Add the digits of the bolded column:

6 + 1 = 7

\frac{+ 0 3 6 1 2 4 8 0}{+ 7 6 8}

Add the digits of the bolded column:

0 + 3 = 3

\frac{+ 0 3 6 1 2 4 8 0}{+ 3 7 6 8}

= 3768

= 3768

3.14

has

2

decimal places

12

has

0

decimal places

= 37.68

180 - 64

0.333

\frac{52}{8}

0.92

1 \frac{1}{4}