Question

1.Calculează respectând regulile învățate.
a) 72-21 : (35 - 4×8);
(27+164:2) - 7 × 8;
b) [(408 : 2 + 100 : 2) × 4 - 65×3] ×270;

3×[(80 : 4) + (125 : 5 - 5)] + 404 : 4

2.Cine a Lucrat Corect?
​

Answer 1

Răspuns:

1.a) 72-21:(35-4×8)

72-21:(35-32)

72-21:3

72-7

65

(27+164:2)-7×8

(27+82) - 56

109-56

53

b)[(408 : 2 + 100 : 2) × 4 - 65×3] ×270

[(204+50)×4-195]×270

(254×4-195)×270

(1016-195)×270

821×270

221670

3×[(80 : 4) + (125 : 5 - 5)] + 404 : 4

3×(29+20)+101

3×49+101

147+101

248

2. [680:20+4×(2+12:12)]×100

(34+4×3)×100

(34+12)×100

4600

IULIAN A LUCRAT CORECT