What is longmult 25*16 ?

The solution to longmult 25*16 is 400

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longmult 25*16

long multiplication

25 \cdot 16

400

Solution steps

25 \cdot 16

Line up the numbers

\times 2156

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 2156

Mutliply the bold numbers:

5 \cdot 6 = 30

Carry

3

to the column on the left and write

0

in the result line

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

Add the carried number to the multiplication:

3 + 2 \cdot 6 = 15

Carry

1

to the column on the left and write

5

in the result line

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

Add the carried digit,

1

, to the result

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

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

\frac{\times 2 1 5 6}{1 5 0}

Mutliply the bold numbers:

5 \cdot 1 = 5

\frac{\times 2 1 5 6}{1 5 5 0}

Mutliply the bold numbers:

2 \cdot 1 = 2

\frac{\times 2 1 5 6}{1 2 5 5 0}

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

\frac{\times 2 1 5 6}{1 2 5 5 0 0}

150 + 250 = 400

= 400

(0)^{2} + 2

324.45 \cdot 98.4

\frac{3.45}{2.6}

2.5

- 2 + 7 + (- 4)