Question

(7/8)2-(3/4)3 =

1/2 x 1/25 – (3/5)2 =

2 x (1/3)2 + 7/9 =

4/3 x (-1/2)2-20=

(3/5)2 – 2 x (1/2)3 : 2 1/4 – (-1)3=

(-1)6- 0,1 3 =

0,23 – 0,72 =

- 0,72 + (-0,3)2 =

1,12 – 0,92 =

(-0,4)2 – 0,13 =

[2/3 x(1 1/2) – 7/16 x 22] : (-1/2) 2 =

Answer 1

(7/8)2-(3/4)3 = 49/64 - 27/64 = 22/64 = 11/32

 

1/2 x 1/25 – (3/5)2 = 1/50 - 9/25 = 1/50 - 18/50 = -17/50

 

2 x (1/3)2 + 7/9 = 2 * 1/9 + 7/9 = 1/18 + 14/18 = 15/18 = 5/6

 

4/3 x (-1/2)2-20=

4/3 * 1/4 - 20 = 1/3 - 20 =

1/3 - 60/3 = -59/3 = - 19 2/3

 

(3/5)2 – 2 x (1/2)3 : 2 1/4 – (-1)3=

9/25 - 2 * 1/8 : 9/4 - (-1) =

9/25 - 1/4 * 4/9 + 1= 

9/25 - 1/9 +1 =

9/25 - 10/9 = 

81/225 - 250/225 = - 169/225

 

(-1)6- 0,1 3 = 1 - 0,13 = 0,87

 

0,23 – 0,72 =- 0,49

 

- 0,72 + (-0,3)2 = -0,72 + 0,09 = -0,63

 

1,12 – 0,92 =0,2

 

(-0,4)2 – 0,13 = 0,16 - 0,13 = 0,03

 

[2/3 x(1 1/2) – 7/16  x 22] : (-1/2) 2 = 

[2/3 * 3/2 - 154/16] : 1/4 =

(1 -154/16) * 4 =

-138/16 * 4 = 

-34 1/2