3*7=21

3*70=210

3*700=2,100

3*7,000=؟

3*4=12

3*40=120

3*400=1,200

3*4,000=12,000

5*3=15

5*30=150

5*300=1,500

5*3,000=1,5000

9*1=9

9*10=90

9*100=900

9*1,000=؟

6*8=48

6*80=480

6*800=4,800

6*8,000=؟

7*9=63

7*90=630

7*900=6,300

7*9,000=63,000

8*2=16

8*20=160

8*200=1,600

8*2,000=160,000,000

6*7=32

6*70=320

6*700=3,200

6*7,000=32,264