Question

(0,5 điểm) Tính.

$\dfrac{11}{3} \cdot \dfrac{2}{5}+\dfrac{11}{3} \cdot \dfrac{8}{5}-\dfrac{11}{3}$

Answer 1

11/3 . 2/5 + 11/3 . 8/5 - 11/3

= 11/3 . (2/5 + 8/5 - 1)

= 11/3 . (2 - 1)

= 11/3 . 1

= 11/3

Answer 2

\(\dfrac{11}{3}\)⋅\(\dfrac{2}{5}\)+\(\dfrac{11}{3}\).\(\dfrac{8}{5}\)-\(\dfrac{11}{3}\)

= \(\dfrac{11}{3}\).(\(\dfrac{2}{5}\) + \(\dfrac{8}{5}\) - 1)

= \(\dfrac{11}{3}\).(2 - 1)

= \(\dfrac{11}{3}\) . 1

=\(\dfrac{11}{3}\)

Answer 3

11/3.

Answer 4

11/3.

 

Answer 5

3,(6)

Answer 6

=11/3

Answer 7

 

 

 

 

 

 

 

11/3.(2/5+8/5) đi đâu 

 

Answer 8

=11/3.(2/5+8/5)+11/3
=11/3.10/3+11/3

 

Answer 9

11/3 . (2/5+8/5)—11/3

=11/3.2-11/3

=11/3‐11/3=0

Answer 10

11/3.(2/5+8/5)-11/3

11/3.10/5-11/3

22/3-11/3

11/3

Answer 11

11

Answer 12

11/3x(2/5+8/5)-11/3

=11/3x2-11/3

=22/3-11/3

=11/3

Answer 13

11 phần 3

Answer 14

=11/3.(2/5+8/5-1)

=11/3(10/5-1)

=11/3.(2-1)=11/3.1

=11/3

Answer 15

= 11/3. (2/5+8/5) - 11/3

 =11/3. 2/1 -11/3

=11/6 - 11/3 = 11/6 - 22/6

= -11/6

Answer 16

11^3×2^5+11^3×8^5-11^3=11^3(8^5+2^5-1)=11^3×1=11^3

Answer 17

=(2/5+8/5)×(11/3+(-11/3)-11/3

=2/1×0-11/3

=0-11/3

=11/3

Answer 18

=11/3×(2/5+8/5)-11/3

=11/3×2-11/3=22/3-11/3

=11/3

Answer 19

11/3×(2/5+8/5)-11/3

=11/3×10/5-11/3

=11/3×2-11/3

=22/3-11/3

=11/3

Answer 20

11/3 × ( 2/5 +8/5 )=11/3 × 2= 22/6 = 11/3

Answer 21

11/3×(2/5+8/5)-11/3

=11/3×2-11/3

=22/3-11/3

=11/3

Answer 22

=11/3×(2/5+8/5)

=11/3×2

=22/3

Answer 23

=11/3.(2/5+8/5)-11/3 =11/3.2-11/3 =22/3-11/3=11/3

 

 

 

Answer 24

= 11/3 . (2/5 + 8/5 - 1)

= 11/3 . (2 - 1)

= 11/3 . 1

= 11/3

Answer 25

11/3