Question

Calculeaza in doua moduri a) 6x (21+44)=; b) (53+73)×3=; c) 10×(11+66)=

Answer 1

a) 6 * (21 + 44) = 6 * 65 * 390
    6 * 21 + 6 * 44 = 126 + 264 = 390
b) (53 + 73) * 3 = 126 * 3 = 378
    53 * 3 + 73 * 3 = 159 + 219 = 378
c) 10 * (11 + 66) = 10 * 77 = 770
    10 * 11 + 10 * 66 = 110 + 660 = 770 

Answer 2

a) 6×(21+44) =6×65=390
al doilea mod
6×(21+44)=6×21+6×44=126+264=390

b ) (53+73)×3=126×3=378
al doilea mood
(53+73)×3=53×3+73×3=378

c) 10×(11+66)=10×77=770
al doilea mood .
10×(11+66)=10×11+10×66=110+660=770
sper ca te am ajutat !!:-) :-)