Find the missing digits.
H 7 8 4 - 4
J 7 0 = 1 8 1 4
- H
- J
| |
Thousands |
Hundreds |
Tens |
Ones |
| |
H = 6 |
7 |
8 |
4 |
| - |
4 |
J = 9 |
7 |
0 |
| |
1 |
8 |
1 |
4 |
(a)
Since 7 in the hundreds place is not enough to subtract 8, we need to regroup and borrow 1 from the thousands place.
So, we need to minus 1 from 6.
H - 1 - 4 = 1
1 + 4 + 1 =
6H =
6(b)
Since 7 in the hundreds place is not enough to subtract 8, we need to regroup and borrow 1 from the thousands place.
So, we can add 10 to 7 so that the sum 17 can be used to subtract 8.
10 + 7 -
J = 8
17 - 8 =
9J =
9 Answer(s): (a) 6; (b) 9
