Sam added 6,152 and 379 and got the sum of 9,942. explain why sams addition is incorrect and find the sum of 6,152 + 379

Hello there!

Here we have the sum 6152 + 379.

We know that Sam find the solution 6152 + 379 = 9942

Here is clearly a mistake, you can see that the addition that sam did is 6152 + 3790 = 9942, so he started added the wrong number.

Now let's compute our sum:

6152 + 379.

you can use a calculator, but let's try another metod:

lets "breack" the second number 379 = 300 + 70 + 9 and do the additions one by one:

6152 + (300 + 70 + 9) = (6152 + 300) + 70 + 9 = (6452 + 70) + 9

now, 50 + 70 = 120; so we have

(6452 + 70) + 9  = 6522 + 9 = 6531

so 6152 + 379 = 6531