Reply to Eureka math. Is it the right way to learn math?

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[quote=Anonymous][quote=Anonymous][quote=Anonymous]23+10
2 tens 3 ones plus 1 tens
What is 2 tens and 1 tens? 3 tens 
So it’s 30. 
Then add 3 ones.
30+3= 33.

You call this easy?

Or 92-20
9 tens 2 ones minus 2 tens
What is 9tens minus 2tens? 7 tens
That’s 70. 
Oh don’t forget to add 2 ones to that. That’s 72!

You call this easy? [/quote]

These kinds of responses always make me laugh. This is literally how addition works. Understanding these steps deeply it what makes you fluent enough to just answer the question without thinking about it in the future.

It's like strategies to learn new vocab words or another language. Of course you don't continue to (at least consciously) use them after you've fully ingrained them.

Think about the questions that specify the strategy to use as just that, strategy/method questions. [/quote]

This. The "new" math is about getting a very good fundamental understanding of how numbers work and how you can operate with them. Not just the algorithm to solve a specific arithmetic thing. When you do mental math, do you imagine the numbers set up in the column and do the addition and the "carry over" or do you add up using the place values to get to the nearest 10 and then add the rest?[/quote]

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