Question

2 Calculează, respectând regulile pe care le introduc parantezele în calcule.
a. 125:5+ (13 +64:2)
e. 5 x [3 600:30 - 81: (54:6)]
b. (37 - 18:2):7 + 108:2
f. 128:4+ [2 x (2 222:22-22:22)]: 10
c. 6x9:[6 -(13- 18:2)]
g. 36:9 + 4 x [20 + 6 x (100:4-42:2)
d. [(9-6) (8 + 9)] +100:(4 + 6)
h. 126 - [(63 x 2:6 + 109) x (75:25 + 21:3)]: 10





Va rog ma ajutati​

Answer 1

Răspuns:

125:5+ (13 +64:2)=

25+(13+32)=25+45=70

5 x [3 600:30 - 81: (54:6)]=

5x(120-81:9)=

5x(120-9)=5x111=555

(37 - 18:2):7 + 108:2=

(37-9):7+54=

28:7+54=4+54=58

128:4+ [2 x (2 222:22-22:22)]: 10=

32+[2x(101-1)]:10

32+(2x100):10

32+200:10

32+20=52

6x9:[6 -(13- 18:2)]=

54:[6-(13-9)]=

54:(6-4)=

54:2=27

36:9 + 4 x [20 + 6 x (100:4-42:2)=

4+4x[20+6x(25-21)]=

4+4x(20+6x4)=

4+4x(20+24)=

4+4x44=

4+176=180

[(9-6)x (8 + 9)] +100:(4 + 6)=

(3x17)+100:10=

51+10=61

126 - [(63 x 2:6 + 109) x (75:25 + 21:3)]: 10=

126-[(126:6+109)x(3+7)]:10=

126-[(21+109)x10)]:10=

126-(130x10):10=

126-1300:10=

126-130= -4

daca ai scris bine exercițiu