Question

calculeaza apoi verifica prin proba
vaa roggg

Answer 1

12×13=156
Proba:(×)13×12=156
(÷)156÷12=13
(÷)156÷13=12
12×64=768
Proba:(×)64×12=768
(÷)768÷12=64
(÷)768÷64=12
243×122=29646
Proba:(×)122×243=29646
(÷)29646÷122=243
(÷)29646÷243=122
243×456=110808
Proba:(×)456×243=110808
(÷)110808÷243=456
(÷)110808÷456=243

Answer 2

12x13 = 156 (poti verifica in 2 feluri)
proba:
156÷12 = 13
156÷13=12

12×64=768
proba :
768÷12=64
768÷64=12

243x122 =29,646
proba :
29,646÷122=243
29,646÷243=122

243x456=110,808
proba:
110,808÷243=456
110,808÷456=243

Sper ca te-am ajutat!