Question

Câu 16. (0,75 điểm) (VD) Tính giá trị của biểu thức: $[(195+35 \, : \, 7) \, : \, 8+195] . 2-400$.

Answer 1

   [ (195 + 35:7) : 8 + 195].2 - 400

=[ (195 + 5):8 + 195].2 - 400

= [ 200:8 + 195].2-400

= [25 + 195].2 - 400

= 220.2 - 400

= 440 - 400

= 40 

Answer 2

[(195+5): 8 +195].2-400

= [200 : 8 + 195].2 - 400

= [25 + 195].2 -400

= 210.2 - 400

= 420 - 400 = 20

Answer 3

[(195+35/7)/8+195]*2-400

=[(195+5)/8+125]*2-400

=[200/8+125]*2-400

=[25+125]*2-400

=150*2-400

=300-400

=-100

Answer 4

[(195+35:7):8+195].2- 400 =[(195+5):8+195].2−400=[200:8+195].2−400=[25+195].2−400 =120.2− 400=240−400=(-160)

Answer 5

[(195 + 35 : 7) : 8 + 195].2 - 400

=[(195 + 5) : 8 + 195].2 - 400

=[200 : 8 + 195].2 - 400

=[25 + 195].2 - 400

=220.2 - 400

=440 - 400

=40

Answer 6

[(195 + 35 : 7) : 8 + 195].2 - 400

=[(195 + 5) : 8 + 195].2 - 400

=[200 : 8 + 195].2 - 400

=[25 + 195].2 - 400

=220.2 - 400

=440 - 400

=40

Answer 7

$[(195+35:7):8+195].2-400$.

=$[(195+5):8+195].2-400$.

=$[200:8+195].2-400$.

=$[25+195].2-400$.

=220$.2-400$.

=440-400

=40

Answer 8

 =[200/ 8 + 195]*2-400

=[25+195]*2-400

=220*2-400

=440-400

=40

Answer 9

Câu 16:

   [(195+35:7):8+195].2-400

= [(195+5):8+195].2-400

= [200:8+195].2-400

= [25+195].2-400

= 220.2-400

= 440-400

= 40

Answer 10

=[195 + 5:8+195]x2 -400

=1+5+8x2-400

=(5x2)+(-395)+1

=-384

Answer 11

[(195+35:7):8+195].2-400

=[(195+5):8+195].2-400

=[200:8+195].2-400

=[25+195].2-400

=220.2-400

=440-400

=40

Answer 12

=[(195+5):8+195].2-400

=[200:8+195].2-400

=[25+195].2-400

=220.2-400

=440-400

=40

Answer 13

   [(195+35:7):8+195].2 - 400

= [(195+5):8+195].2 - 400

=[200:8+195].2 - 400

=[25+195].2 - 400

=220.2 - 400

=440 - 400

=40

Answer 14

 $[(195+35:7):8+195].2-400$

$=[(195+5):8+195].2-400$

$=[200:8+195].2-400$

$=[25+195].2-400$

$=220.2-400$

$=440-400$

$=40$.

Answer 15

 $[(195+35:7):8+195].2-400$

$=[(195+5):8+195].2-400$

$=[200:8+195].2-400$

$=[25+195].2-400$

$=220.2-400$

$=440-400$

$=40$.

Answer 16

[(195+35:7):8+195].2-400

=[200:8+195].2-400

=220.2-400

=440-400

=40

Answer 17

[(195 + 35 : 7) : 8 + 195].2 - 400

= [(195 + 5) : 8 + 195].2 - 400

= (200 : 8 + 195).2 - 400

= (25 + 195).2 - 400

= 220 .2 - 400

= 440 - 400

= 40

Answer 18

[(195 + 35 : 7) : 8 + 195].2 - 400

= [(195 + 5) : 8 + 195].2 - 400

= (200 : 8 + 195).2 - 400

= (25 + 195).2 - 400

= 220 .2 - 400

= 440 - 400

= 40

Answer 19

[(195+35:7):8+195].2-400

=[200:8+195].2-400

=[25+195].2-400

=220.2-400

=440-400

=40

Answer 20

[(195+35:7):8+195].2-400

=[200:8+195].2-400

=220.2-400

=440-400

=40

Answer 21

=[(195+5):8+195].2-400

=[200:8+195].2-400

=[25+195].2-400

=220.2-400

=440-400

40

Answer 22

  [ (195 + 35:7) : 8 + 195].2 - 400

=[ (195 + 5):8 + 195].2 - 400

= [ 200:8 + 195].2-400

= [25 + 195].2 - 400

= 220.2 - 400

= 440 - 400

= 40 

Answer 23

  [ (195 + 35:7) : 8 + 195].2 - 400

=[ (195 + 5):8 + 195].2 - 400

= [ 200:8 + 195].2-400

= [25 + 195].2 - 400

= 220.2 - 400

= 440 - 400

= 40 

Answer 24

  [ (195 + 35:7) : 8 + 195].2 - 400

=[ (195 + 5):8 + 195].2 - 400

= [ 200:8 + 195].2-400

= [25 + 195].2 - 400

= 220.2 - 400

= 440 - 400

= 40 

Answer 25

= [(195 + 5) : 8 + 195] . 2 - 400

= [200 : 8 + 195] . 2 - 400

= [25 + 195] . 2 - 400

= 220 . 2 - 400

= 440 - 400

= 40

Answer 26

  $[(195+35:7):8+195].2-400$

$=[(195+5):8+195].2-400$

$=[200:8+195].2-400$

$=[25+195].2-400$

$=220.2-400$

$=440-400$

$=40$.

 

Answer 27

[(195+35:7):8+195].2-400

=[200:8+195].2-400

=220.2-400

=440-400

=40

Answer 28

[(195+35:7):8+195].2-400

=[(195+5):8+195].2-400

=[200:8+195].2-400

=[25+195].2-400

=220.2-400

=440-400

=40

Answer 29

[(195+35:7):8+195].2-400=[(195+5):8+195].2-400=[200:8+195].2-400=[25+195].2-400=220.2-400=440-400=40

Answer 30

[ (195 + 35:7) : 8 + 195].2 - 400

=[ (195 + 5):8 + 195].2 - 400

= [ 200:8 + 195].2-400

= [25 + 195].2 - 400

= 220.2 - 400

= 440 - 400

= 40