Question

a) 2*6\14+12=

-3*(4*6\14-6)=

b) (12*8\11-6):3=

5(3*8\11-2)=

c)1\2*10-4=

3\10*10-6=

d) -3(2*4,6-4)=

4(-3*4,6+10)=

e)

2*1,2-6):3=

5(3*1,2-2)=

Answer 1

a) 2 x 6/14 + 12 = 12/14 + 12 = 12 12/14 = 12 6/7

-3 x (4x 6/14 - 6) = -3 x (24/14 - 6) = -3 x (24/14 - 6/1) = -3 x  (-60/14) = -3/1 x (-60/14) = 180/14 = 12 6/7

 

b) (12 x 8/11 - 6) : 3 = (8 8/11 - 6) : 3 = 2 8/11 : 3/1 = 30/11 x 1/3 = 30/33 = 10/11

5(3 x 8/11 - 2) = 5(24/11 - 2) =  10 10/11 - 10 = 10/11

 

c) 1/2 x 10 - 4 = 5 - 4 = 1

3/10 x 10 - 6 = 3 - 6 = (-3)

 

d) -3(2 x 4,6 - 4) = -3(9,2 + 4) = -27,6 + (-12) = -39,6

4(-2 x 4,6 + 10) = 4(-9,2 + 10) = -36,8 + 40 = 3,2

 

e) (2 x 1,2 - 6) : 3 = (2,4 - 6) : 3 =  -3,6 : 3 = (-1,2)

5(3 x 1,2 - 2) = 5(3,6 - 2) = 5 x 1,6 = 8