3 4 7 8 9 10 4 x 4 x 4 x 4 x 4 x 4 x 1 2 3 4 5 6 = = = = = = 12 16 20 24 28 32 5 5 5 5 5 5 X X X X X X 1 2 3 4 5 6 = = = = = = 5 10 15 20 25 30 7 8 9 9 9 9 X X X X X X 1 2 3 4 5 6 = = = = = = 7 14 21 28 35 42

Выполним умножение:

1. $$4 \times 1 = 4$$, $$5 \times 1 = 5$$, $$7 \times 1 = 7$$, $$8 \times 1 = 8$$, $$9 \times 1 = 9$$
2. $$4 \times 2 = 8$$, $$5 \times 2 = 10$$, $$7 \times 2 = 14$$, $$8 \times 2 = 16$$, $$9 \times 2 = 18$$
3. $$4 \times 3 = 12$$, $$5 \times 3 = 15$$, $$7 \times 3 = 21$$, $$8 \times 3 = 24$$, $$9 \times 3 = 27$$
4. $$4 \times 4 = 16$$, $$5 \times 4 = 20$$, $$7 \times 4 = 28$$, $$8 \times 4 = 32$$, $$9 \times 4 = 36$$
5. $$4 \times 5 = 20$$, $$5 \times 5 = 25$$, $$7 \times 5 = 35$$, $$8 \times 5 = 40$$, $$9 \times 5 = 45$$
6. $$4 \times 6 = 24$$, $$5 \times 6 = 30$$, $$7 \times 6 = 42$$, $$8 \times 6 = 48$$, $$9 \times 6 = 54$$

Ответ: выполнены действия умножения.