Question

A student correctly added the two two-digit numbers on the left of the board and got the answer 137. What answer will she obtain if she adds the two four-digit numbers on the right of the board?

AB + CD=137
ADCB +CBAD =?

Answer 1

To find the answer to the equation ADCB + CBAD, we can add the digits in each place value separately and then concatenate the sums of each place value.

Step-by-step explanation:

To find the answer to the equation ADCB + CBAD, we can add the digits in each place value separately.

Starting from the rightmost digit, we add the ones place: B + D = X (where X represents the sum of the ones place digits).

Next, we add the tens place: C + A = Y (where Y represents the sum of the tens place digits).

Then, we add the hundreds place: D + C = Z (where Z represents the sum of the hundreds place digits).

Finally, we add the thousands place: A + B = W (where W represents the sum of the thousands place digits).

The final answer to the equation ADCB + CBAD will be the concatenation of the sums of each place value: WZXY.