Вычисли устно:
36 * 10
100 * 4
70 * 10
29 * 100
10 * 300
56 * 100
8 * 1000
10000 * 3
90 * 100
1000 * 64
36 * 10 = 360
100 * 4 = 400
70 * 10 = 700
29 * 100 = 2900
10 * 300 = 3000
56 * 100 = 5600
8 * 1000 = 8000
10000 * 3 = 30000
90 * 100 = 9000
1000 * 64 = 64000