403.ա․32145+125=32270
3220-125=32145
Բ․3526+514=4040
4040-514=3526
404.ա․6153-523=5330
5330+523=6153
Բ․2453-216=2237
2237+216=2453
405.ա․1560×6=9360
9360:6=1560
Բ․4200×50=210000
210000:50=4200+*+
406.ա․21500:50=4210
4210X50=21500
Բ․12420:30=414
414×3=12420