Question

Va rog ajutați-mă.............. ​

Answer 1

Răspuns:

3)

a) ( 2×27) ÷(3+7 -1 ) =

54 ÷ ( 10 -1) =

54 ÷9= 6

b)

5×(4 ÷2 +8 -2 )=

5× ( 2 +8-2) =

5 × ( 10 -2) =

5×8= 40

c)

(5×4)÷(2+8)-2=

20 ÷10 -2=

2-2 =0

d)

75÷(7 -2 ) +9 ×(15 -6)=

75 ÷ 5 +9 × 9=

15 +81= 96

e)

(100 ×6 ×6 -9×4)×0=

(600×6-9×4)×0=

( 3600 -36) ×0=

3564×0= 0

4)

a= 6×7 -5×5-72÷8

a = 42 -25 -9

a = 17-9

a= 8

b= 64÷8 +3×4-4×4

b = 8 + 12 -16

b= 20-16

b= 4

c = 42 ÷6 -16÷8

c= 7 -2

c=5

3 × 8 -2 x 4+5 =

24 - 8 +5 =

16+5 = 21

4× 8 -3 x4 +2 × 5=

32 -12 + 10=

20+10 = 30

21<30