Question

4. What number must be subtracted from 6,420 to get 4,3
5. Fill in the boxes with '+'or-
(a) 750 350 100 = 300
(b) 620_ 300 200 = 520​

Answer 1

4. let that no. be x .

i) 6420 - x = 4

6420 - 4 = x

6416 = x

Therefore, x = 6416

ii) 6420 - x = 3

6420 - 3 = x

6417 = x

Therefore, x = 6417

5. a) 750 - 350 - 100 = 300

b) 620 - 300 +200 = 500