Question

Afla produsul ,calculand ptin descompunerea unui factor in duma de zeci si unitati ,dupa model.2×12=2×(10+2)= =2×10+2×2 = .=20+ 4 =24 a)3×12 ,4×22 ,b)4×12 ,2×44,c)2×33,3×33, vreau raspuns​

Answer 1

Răspuns:

3x12=2×(3+12)

=2×3+2×12

=6+14

=20

4×22=2×(4+22)

=8+44

=52

4×12=2×(4+12)

=8+24

=3

2×44=92

2×33=72

3×33=108