Question

EXERCISE 3C
1 Perform the following subtractions. Check your results by the corresponding addition
(i) 6237 - 694
(ii) 21205 - 10899
(iii) 100000 - 78987
(iv) 1010101 - 656565
2. Replace each * by the correct digit in each of the following:
(i) 917
(1) 6172
– * 5 *
* * 6 9
5 * 8
2
9
*
*
(iii)
(iv)
1 0 0 0 0 0 0
*
5 0 0 1 0 0 3
* *6987
4 8 4 * * * *
*
*
*
1
*70 42 *
3. Find the difference:
(i) 463-9
(ii) 5632-99
(iii) 8640 - 999
(iv) 13006 - 9999​

Answer 1

Answer:

1. 5543

2. 10306

3. 21013

4. 353536