Multiplication problems.

Multiplication Problems:

The image contains several multiplication problems written in a grid format, typical for elementary school arithmetic practice. Each problem consists of two numbers to be multiplied, with intermediate steps and the final product shown.

Problem 1:

\( 520 \times 261 \)

Intermediate steps and final product are shown, but not explicitly detailed in a way that can be reproduced without ambiguity from the image alone.

Problem 2:

\( 183 \times 221 \)

Problem 3:

\( 315 \times 367 \)

Problem 4:

\( 357 \times 415 \)

Problem 5:

\( 432 \times 525 \)

Problem 6:

\( 226 \times 186 \)

Problem 7:

\( 325 \times 587 \)

Problem 8:

\( 682 \times 476 \)

Problem 9:

\( 575 \times 175 \)

Problem 10:

\( 535 \times 475 \)

Problem 11:

\( 541 \times 243 \)

Problem 12:

\( 940 \times 143 \)

Problem 13:

\( 304 \times 272 \)

Problem 14:

\( 376 \times 427 \)

Problem 15:

\( 145 \times 719 \)

Note: The image shows the layout of multiplication problems and their results, but the exact intermediate calculation steps for each problem are not fully legible or detailed for a step-by-step explanation.