help with early math Course Challenge
I've been having issues recently with a certain question, particularly this one:
Which expressions represent the same amount as
Choose 2 answers:
-
hundreds 14 tens + 2 ones
-
hundreds 4 ones + 2 ones
-
hundreds 42 tens
-
3 hundreds 42 onesAfter I completed the equation, I checked and saw the Khan Academy answers just for good measure. And the two answers were these:
- hundreds + 42 tens
- hundreds 14 tens 2 ones
Now, one of these answers is incorrect, specifically the first one, 3 hundreds+ 42 tens. If you had 300 plus 42 tens, the answer would be 720, because 42 tens is 420. But, the intended answer was 342, so the actual correct answers would be:
3 hundreds + 42 ones
2 hundreds + 14 tens + 2 ones
Thank you for reading, and if anyone at Khan Academy sees this, please correct it.
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