What is longmult 18*18 ?

The solution to longmult 18*18 is 324

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Popular >

longmult 18*18

Solution

long multiplication

18 \cdot 18

Solution

324

Solution steps

18 \cdot 18

Line up the numbers

\times 1188

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 1188

Mutliply the bold numbers:

8 \cdot 8 = 64

Carry

6

to the column on the left and write

4

in the result line

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

Add the carried number to the multiplication:

6 + 1 \cdot 8 = 14

Carry

1

to the column on the left and write

4

in the result line

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

Add the carried digit,

1

, to the result

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

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

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

Mutliply the bold numbers:

8 \cdot 1 = 8

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

Mutliply the bold numbers:

1 \cdot 1 = 1

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

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

\frac{\times 1 1 8 8}{1 1 4 8 4 0}

144 + 180 = 324

+ 114840

Add the digits of the bolded column:

4 + 0 = 4

\frac{+ 1 1 4 8 4 0}{+ 4}

Add the digits of the bolded column:

4 + 8 = 12

\frac{+ 1 1 4 8 4 0}{+ 4}

Carry

1

to the column on the left and write

2

in the bolded column

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

Add the digits of the bolded column:

1 + 1 + 1 = 3

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

= 324

= 324

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Frequently Asked Questions (FAQ)

What is longmult 18*18 ?
The solution to longmult 18*18 is 324