Albert added 346 + 51 and got a sum of 856. What did he do wrong? %C2%A0 (1 point) Responses Albert multiplied the two numbers instead of adding. Albert multiplied the two numbers instead of adding. Albert made a mistake when adding 4 tens + 5 tens. Albert made a mistake when adding 4 tens + 5 tens. Albert did not align the digits according to their place value when he set up the problem. Albert did not align the digits according to their place value when he set up the problem. Albert forgot to carry a ten over to the next column of digits. Albert forgot to carry a ten over to the next column of digits. Skip to navigation

Answer 1

Let’s break down Albert’s calculation correctly.

We need to add 346 and 51 step by step:

    346
  +  51
  ------

1. Add the ones place:

   • 6 (from 346) + 1 (from 51) = 7.

2. Add the tens place:

   • 4 (from 346) + 5 (from 51) = 9.

3. Add the hundreds place:

   • 3 (from 346) = 3.

Putting it together, we get:

   346
 +  51
 ------
   397

So the correct answer is 397.

Albert’s sum of 856 is incorrect. The most likely reason for this mistake is: Albert made a mistake when adding 4 tens + 5 tens, which should correctly total 9 tens, not a higher number that would lead to the erroneous sum of 856. Therefore, the correct answer is:

Albert made a mistake when adding 4 tens + 5 tens.