Question

4
8. Calculaţi:
a) 9 (7-5)
12 x (9-5)
10 x (8-7)
c) 81-2 x (16-9)
87 +90:(11-2)
(7+8)x(5-4)

b) 7+9x6
9-0x9
8 + 6 x 8
d) 9+48 :(54-46)
8+77:(98-87)
(9+7):(9–7)
​

Answer 1

Răspuns:

9(7-5)=9x2=18

12x4=48

10x1=10

81-2x7=81-14=67

87+90:9=87+10=97

15x1=15

b). 7+54=61

9-0=9

8+48=56

9+48:8=9+6=15

8+77:11=8+7=15

16:2=8

in ordinea in care sunt scrise..

Explicație pas cu pas: