Question

1)Calculeaza,asociind convenabil factorii: a)5*4*2; 4*3*2; 5*3*3;

Answer 1

5*2*4=40
4*2*3=24
3*3*5=45
Sper ca este corect!!

Answer 2

a)  5 × 4 × 2 = 4 × ( 5 × 2 ) = 4 × 10 = 40 → asociativitate

b) 4 × 3 × 2 = 4 × ( 3 × 2 ) = 4 × 6 = 24

sau:  ( 4 × 2 ) × 3 = 8 × 3 = 24

c)  5 × 3 × 3 = 5 × ( 3 × 3 ) = 5 × 9 = 45