Question

Oblicz

2,55 : (8,2:4-2)=

10x (1oo,5 -16,1: 1/5)=

3 3/4 : 15 x 1000=

1000- 4/5: 0,8=

37,1 : (4-3,9)=

(7-4 4/5) x (17 3/5 + 12 , 4) =

0,232 : 0,4 x 100=

12000+6 2/5 x 5 5/8 =

(500,15 + 9) :0,01=

330+ 1 3/5 x 60

3,6 x 60 - 1,3 x 20

Answer 1

2,55 : (8,2:4-2)= 2,55:(2,05-2)=2,55:0,05=51

 

10x (1oo,5 -16,1: 1/5)=10*(100,5-80,5)=10*20=200

 

3 3/4 : 15 x 1000=15/4*1/15*1000=1/4*1000=250

 

1000- 4/5: 0,8=1000-1=999

 

37,1 : (4-3,9)=37,1/0,1=371

 

(7-4  4/5) x (17 3/5 + 12 , 4) =(35/5-24/5)*(88/5+12,4)=11/4*30=2,75*30=82,5

 

0,232 : 0,4 x 100=0,58*100=58

 

12000+6  2/5 x 5  5/8 =12000+6,4*5,6=12000+35,84=12035,84

 

(500,15 + 9) :0,01=509,15/0,01=50915

 

330+ 1  3/5 x 60=330+1,6*60=330+96=426

 

3,6 x 60 - 1,3 x 20=216-26=190

Answer 2

2,55 : (8,2:4-2)=2,55(2.05-2)=2,55:0,05=51

10x (1oo,5 -16,1: 1/5)=10*(100,5-80,5)=10*20=200

3 3/4 : 15 x 1000=3³/₄:15*1000=¹⁵/₄:15*1000=¹⁵/₄*¹/₁₅*1000=¹/₄*1000=250

1000- 4/5: 0,81000-⁴/₅:⁸/₁₀==1000-⁴/₅*¹⁰/₈=1000-1=999

37,1 : (4-3,9)=37,1:0,1=371

(7-4  4/5) x (17 3/5 + 12 , 4) =(6⁵/₅-4⁴/₅)*17³/₅+12⁴/₁₀)=2¹/₅*(17⁶/₁₀+12⁴/¹⁰)=2¹/₅*30=¹¹/₅*³⁰/₁=66

0,232 : 0,4 x 100=0,58*100=58

12000+6  2/5 x 5  5/8 =12000+³²/₅*⁴⁵/₈=12000+36=12036

(500,15 + 9) :0,01=509,15:0,01=50915

330+ 1  3/5 x 60=330+1³/₅*⁶⁰/₁=330+⁸/₅*⁶⁰/₁=330+96=426

3,6 x 60 - 1,3 x 20=216-26=190