Use the standard method

2
13 x 17 = ? + 130 = ?

1 answer

To solve the equation \( 13 \times 17 = ? + 130 = ? \), we first calculate \( 13 \times 17 \).

Calculating \( 13 \times 17 \):

\[ 13 \times 17 = 221 \]

Now we substitute back into the equation:

\[ 221 = ? + 130 \]

To find the value of \( ? \), we can rearrange the equation:

\[ ? = 221 - 130 \]

Now, we perform the subtraction:

\[ ? = 91 \]

Thus, the overall solution is:

\[ 13 \times 17 = 221 \] \[ 221 = 91 + 130 \]

Hence, the answer is:

\[ ? = 91 \]