Question

A magic subtraction lock has hidden numbers. To open the lock, we need to fill the missing numbers. Help Brian find the missing numbers.

• A. A = 9; B = 1
• B. A = 8; B = 1
• C. A = 8; B = 2
• D. A = 9; B = 2

Answer 1

The correct option is D A = 9; B = 2

Given,

To find the missing numbers, let's start from the ones places.

3 is subtracted from A to get 6. We can represent this as:

A - 3 = 6
A = 6 + 3
A = 9

Moving to the tens places, we can see that the tens places are already filled. We move to the hundreds places.

B is subtracted from 6 to get 4. We can represent this as:

6 - B = 4
B = 6 - 4
B = 2

Therefore, the table can be represented as:

Therefore, the value of A is 9 and B is 2.