Find the product: 87×724
253
203
13
613
87×724 On Cancelling 7, we get, ⇒8/71×/7124⇒824 On cancelling the common factor 8, we get 13.
Evaluate :
(i) 37+−49+−117+79(ii) 23+−45+13+25(iii) 47+0+−89+−137+179(iv) 38+−512+37+312+−58+−27