№48. Вычисли.

Решение:

\( 42 : 7 = 6 \)

\( 14 : 7 = 2 \)

\( 21 : 7 = 3 \)

\( 28 : 7 = 4 \)

\( 35 : 7 = 5 \)

\( 42 : 7 = 6 \)

\( 56 : 7 = 8 \)

\( 63 : 7 = 9 \)

\( 7 \times 7 = 49 \)

\( 7 \times 9 = 63 \)

\( 7 \times 5 = 35 \)

\( 7 \times 6 = 42 \)

\( 7 \times 4 = 28 \)

\( 7 \times 10 = 70 \)

\( 7 \times 2 = 14 \)

\( 7 \times 3 = 21 \)

Ответ: 6, 2, 3, 4, 5, 6, 8, 9, 49, 63, 35, 42, 28, 70, 14, 21.