1. Afla numerele necunoscute
a) b × 45 =3735
62 × a =1178
b) x ÷9 = 3816
x÷32=194
c)2822÷x=34
1656÷x=72


Răspuns :

b×45=3735
b=3735÷45

62×a=1178
a=1178÷62

x÷9=3816
×=3816×9
2822÷x=34
x=2822÷34