re: 9+6 = ? "Our young learners might not be altogether comfortable..."

quote:

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678 plus 517. In your head.

Okay now 680 plus 515.

Easier ain't it?

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I got 695 + 500.

Also, how did you add that up in your head? Were you forced to learn the shortcut, or did you, over time, learn the shortcut yourself based on your previous knowledge of mathematics learned the original way? You can't force innovation when you don't even know the building blocks. It causes massive failures.