Find the missing digits.
- S
- T
S127 - 43T2 = 1775(a)
In the hundreds place, 1 is less than 3.
So, there is regrouping in the thousands place.
S - 1 - 4 = 1
S = 1 + 4 + 1
S = 6
(b)
In the ones place, 7 is more than 2.
So, there is no regrouping in the tens place.
2 - T = 7
In the tens place, 7 is more than 2.
This means that there is a regrouping done in the hundreds place so that 12 can substract a certain number to get 7.
T = 12 - 7
T = 5
Answer(s): (a) 6; (b) 5
