Question

30+2×3+a=80. 70+5×5+b=100. 4×4+c=50. 8×8-d= 10​

Answer 1

30+2×3+a=80

30+6+a=80

6+a=80-30

6+a=50

a=50-6

a=46

70+5×5+b=100

70+25+b=100

25+b=100-70

15+b=30

b=30-15

b=15

4×4+c=50

16+c=50

c=50-16

c=34

8×8-d=10

64-d=10

d=64-10

d=54

Noroc!Poti sa mi dai coroana?

Answer 2

30+2x3+a=80
=30+6+a=80
=36+a=80
a=80-36
a=44.


70+5x5+b=100
70+25+b=100
95+b=100
b=100-95
b=5



4x4+c=50
16+c=50
c=50-16
c=34



8x8-d=10
64-d=10
d=64-10
d= 54