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I am having problems with my math homework. Here are the problems:

1. Comare 27-6+7 and 27-(6+7).

2. Add parentheses to make this true. 15-6-3=12

3. Add parentheses and brackets to make this true. 3x100/20+5=20

 

      -Thanks!

     maddiB926

 Apr 28, 2015

Best Answer 

 #1
avatar+103915 
+5

1.  27-6+7 and 27-(6+7)

     27- 6 + 7  = 21 + 7 = 28

     27 - ( 6 + 7)  = 27 - 13 = 14

 

2.  15-6-3=12   

     15 - ( 6 -3)  =

     15 - 3 =    12

 

3.   3x100/20+5=20

      3 x (100/20) + 5  =

      3 x (5)  +  5  =

      15  + 5  

      20

 

  

 Apr 28, 2015
 #1
avatar+103915 
+5
Best Answer

1.  27-6+7 and 27-(6+7)

     27- 6 + 7  = 21 + 7 = 28

     27 - ( 6 + 7)  = 27 - 13 = 14

 

2.  15-6-3=12   

     15 - ( 6 -3)  =

     15 - 3 =    12

 

3.   3x100/20+5=20

      3 x (100/20) + 5  =

      3 x (5)  +  5  =

      15  + 5  

      20

 

  

CPhill Apr 28, 2015
 #2
avatar+90 
0

Thanks! Are you a boy?

 Apr 28, 2015
 #3
avatar+1222 
0

I think that my friend Cohill had u explain well...

 Apr 28, 2015

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