Solve the multiplication problems. Show your work.

Решение:

1. Пример 1:

\( 769 \times 431 \)

    769
  x 431
  -----
    769  (769 * 1)
  2307   (769 * 3, shifted left)
3076    (769 * 4, shifted left twice)
-------
331439

2. Пример 2:

\( 248 \times 195 \)

    248
  x 195
  -----
   1240  (248 * 5)
  2232   (248 * 9, shifted left)
248    (248 * 1, shifted left twice)
-------
48360

3. Пример 3:

\( 906 \times 397 \)

    906
  x 397
  -----
   6342  (906 * 7)
  8154   (906 * 9, shifted left)
2718    (906 * 3, shifted left twice)
-------
359682

4. Пример 4 (сумма):

\( 748878 \)

5. Пример 5 (сумма):

\( 365463 \)

Ответ: 331439, 48360, 359682.