What is longmult 30*30 ?

The solution to longmult 30*30 is 900

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longmult 30*30

long multiplication

30 \cdot 30

900

Solution steps

30 \cdot 30

Line up the numbers

\times 3300

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 3300

Mutliply the bold numbers:

0 \cdot 0 = 0

\frac{\times 3 3 0 0}{0}

Mutliply the bold numbers:

3 \cdot 0 = 0

\frac{\times 3 3 0 0}{0 0}

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

\frac{\times 3 3 0 0}{0 0}

Mutliply the bold numbers:

0 \cdot 3 = 0

\frac{\times 3 3 0 0}{0 0 0}

Mutliply the bold numbers:

3 \cdot 3 = 9

\frac{\times 3 3 0 0}{9 0 0 0}

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

\frac{\times 3 3 0 0}{0 9 0 0 0 0}

0 + 900 = 900

+ 090000

Add the digits of the bolded column:

0 + 0 = 0

\frac{+ 0 9 0 0 0 0}{+ 0}

Add the digits of the bolded column:

0 + 0 = 0

\frac{+ 0 9 0 0 0 0}{+ 0 0}

Add the digits of the bolded column:

0 + 9 = 9

\frac{+ 0 9 0 0 0 0}{+ 9 0 0}

= 900

= 900

\frac{15}{100}

\frac{40}{20}

14 c^{3}, 70 c^{4}, 28 c^{2}

\frac{10}{36}

12, 15