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How many digits for approximate?

Xavier Bordoy

Category

microblog

Keywords

"approximate" "bad-practicing" "mastodon" "twitter"

This week I said to my students “how many digits do you use to approximate non-exact square root?” Almost everyone said 2. Why? They did not know. My opinion it’s because math teachers repeadely told them without any reason… #log #classrroom #badpracticing