Question

1. Calculeaza :
n1 = 800:2 - (690 - 60) : 9 - 29 x 8 =
n2=1000 : 25 - 0 : 34 - 11 x 3 =
n3= 450 : 9 : 25 x 19 + 129 : 3

Precizeaza care afirmatii sunt adevarate sau false.
a) n1>n2 +n3 , b) n1-n2<3 , c) n3-n2<n1
Ajutati-ma !! Dau Coroana !!!

Answer 1

n1 = 800:2 - (690 - 60) : 9 - 29 x 8 
n1 = 400 - 630:9 - 232
n1 = 400 - 70 - 232
n1 = 98

n2 =1000 : 25 - 0 : 34 - 11 x 3 
n2 = 40 - 0 - 33
n2 = 7

n3 = 450 : 9 : 25 x 19 + 129 : 3
n3 = 50:25 x 19 + 43
n3 = 2 x 19 +43
n3 = 81

Precizeaza care afirmatii sunt adevarate sau false.
a) n1>n2+n3  ⇒ 98 > 7 + 81 , 98 > 88 (A)
b) n1-n2<n3  ⇒ 98-7 < 81 , 91 < 81 (F)
c) n3-n2<n1 ⇒ 81-7 < 98 , 74 < 98 (F)