2/5 + 4/9 is
10/23
8/45
38/45
6/13
(1/3)-4 is equal to
3
34
1
3-4
The number of zeros at the end of the cube of 100 is
2
4
6
A rational number between 3/4 and 4/5 is
16/40
17/40
18/40
31/40
(-1)50 is equal to
-1
50
-50
2 X 5/3 =
10/3
5/6
10/6
2/3
1+ 3+5+7+9+11+13+15=
8
16
64
120
6-1 equal to
-1/6
1/6
In 102, the exponent is
10
100
(20+4-1) X 22 is equal to
5