Repede.Ex.11.12.Dau coroana

11)(23×56)+(23-56)=1288+(-33)=1255
12)(57×84)-(300+63)=4788-363=4425

11)

23 × 56 = 1 288 → produsul numerelor 23 si 56

56 - 23 = 33 → diferenta numerelor

( 23 × 56 ) + ( 56 - 23 ) = 1 288 + 33 = 1 321 → suma

12)

57 × 84 = 4 788 → produsul numerelor

300 + 63 = 363 → suma numerelor 300 si 63

( 57 × 84 ) - ( 300 + 63 ) = 4 788 - 363 = 4 425 → diferenta