Question

Look at the incomplete multiplication problem below.

638 times 56 = 3828. 3828 + question mark = blank

What value is missing?
31,500
31,900
35,280
35,728

Answer 1

To solve the problem, first we need to calculate \( 638 \times 56 \) to check if the given multiplication result of 3828 is correct.

Calculating \( 638 \times 56 \):

\[
638 \times 56 = 35728
\]

So, the correct multiplication result is 35728, not 3828.

Now, we need to find out what value, when added to 3828, gives us 35728. We set up the equation:

\[
3828 + \text{?} = 35728
\]

To find the missing value, subtract 3828 from 35728:

\[
\text{?} = 35728 - 3828
\]
\[
\text{?} = 31900
\]

Now, let's check our calculation:

\[
35728 - 3828 = 31900
\]

The missing value is indeed \( 31,900 \).

Therefore, the answer is:

**31,900**