Ans 10:
Class : Class 7
See,deepak if 2-2 =0 ,then if the minued and the subtrahend are equal, the diff-erence is 0.
Ans 18:
Class : Class 10
The answer is A:0if you write the number sentence (given:(A-B)-(C-D)),each number will add and subtract itself(without the bracket):10923 18732 - 8473 - 18732 - 10923 - 9018 8473 9018from this we can say that the answer is 0.