Răspuns :
1)6×7=42
2)42-33=9
3)540:9=60
4)66-60=6
5)6000:6=1000
6)1000×8=8000
7)400+8000=8400
330:5=66
72:2=36
66-36=30
3×30=90
10+90=100
36:9=4
0×100=0
4+0=4
5×4=20
4+20=24
800:5=160
36:2=18
160-18=142
142×4=568
568+20=588
32:8=4
4×588=2,352
4+2352=2356
2×2356=4,712
20+4712=4732
50:5=10
10+3=13
13×75=975
975-975=0
450:5=90
25:5=5
5×0=0
90+0=90
90×2=180
150+180=330
245:5=49
246:6=41
49-41=8
6×8=48
20+48=68
819:9=91
4×68=272
288+91=379
379+272=651
300:5=60
72:2=36
60-36=24
7×24=168
40+168=208
64:8=8
4×208=832
8+832=840
5×840=4,200
56+4200=4256
Poftim, Coroana?