What is longmult 1.3*1.2 ?

The solution to longmult 1.3*1.2 is 1.56

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longmult 1.3*1.2

long multiplication

1.3 \cdot 1.2

1.56

Solution steps

1.3 \cdot 1.2

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

13 \cdot 12 = 156

13 \cdot 12

Line up the numbers

\times 1132

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 1132

Mutliply the bold numbers:

3 \cdot 2 = 6

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

Mutliply the bold numbers:

1 \cdot 2 = 2

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

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

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

Mutliply the bold numbers:

3 \cdot 1 = 3

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

Mutliply the bold numbers:

1 \cdot 1 = 1

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

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

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

26 + 130 = 156

+ 012360

Add the digits of the bolded column:

6 + 0 = 6

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

Add the digits of the bolded column:

2 + 3 = 5

\frac{+ 0 1 2 3 6 0}{+ 5 6}

Add the digits of the bolded column:

0 + 1 = 1

\frac{+ 0 1 2 3 6 0}{+ 1 5 6}

= 156

= 156

1.3

has

1

decimal place

1.2

has

1

decimal place

= 1.56

8^{2} + 1 5^{2}

\frac{100}{50}

144 + 81

(- 3) 2 + (1 - 9)

(3 + 2)^{2} - 7