Find the missing digits.
- B
- C
B159 - 13C8 = 4781(a)
In the hundreds place, 1 is less than 3.
So, there is regrouping in the thousands place.
B - 1 - 1 = 4
B = 4 + 1 + 1
B = 6
(b)
In the ones place, 9 is more than 8.
So, there is no regrouping in the tens place.
5 - C = 8
In the tens place, 8 is more than 5.
This means that there is a regrouping done in the hundreds place so that 15 can substract a certain number to get 8.
C = 15 - 8
C = 7
Answer(s): (a) 6; (b) 7
