Find the missing digits.
9 1 4
X - 7
Y 2 9 = 1 7 1 9
- X
- Y
| |
Thousands |
Hundreds |
Tens |
Ones |
| |
9 |
1 |
4 |
X = 8 |
| - |
7 |
Y = 4 |
2 |
9 |
| |
1 |
7 |
1 |
9 |
(a)
Add 9 and 9 in the ones place and take the digit in the ones place from the answer.
9 + 9 = 1
8 X =
8(b)
Since 1 in the hundreds place is not enough to subtract 7, we need to regroup and borrow 1 from the thousands place.
So, we can add 10 to 1 so that the sum 11 can be used to subtract 7.
10 + 1 -
Y = 7
11 - 7 =
4Y =
4 Answer(s): (a) 8; (b) 4
