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Mar 28, 2022 at 14:12 vote accept CommunityBot
Mar 7, 2022 at 22:44 answer added cody benedict timeline score: 1
Feb 22, 2022 at 20:01 comment added Steve Can you give us a rough notion of how many 3x3 multiplications (or calculations of similar complexity) are actually expected of you in a fixed exam period (and length of said period in minutes?)? For grins, I did the problem you mentioned the "old-fashioned" way and found that it took me about 30 s to complete it. That 30 s time requires complete immediate recall of multiplications and additions with arguments <= 12 to achieve. We need to understand the actual necessary level of performance to determine whether certain strategies will be enough to achieve it.
Feb 22, 2022 at 15:31 comment added Adam Rubinson On the one hand, not being able to do $6+5$ without using your fingers probably is a problem. But not being allowed to use a calculator to calculate $965\times 532$ seems to a bit pointless to me. I don’t know why they (your teacher) would make you do this if it’s not the pedagogical goal of the exercise…
Feb 22, 2022 at 4:33 history edited user19536 CC BY-SA 4.0
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Feb 21, 2022 at 20:26 history edited Chris Cunningham CC BY-SA 4.0
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Feb 21, 2022 at 20:19 history edited user19536 CC BY-SA 4.0
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Feb 20, 2022 at 19:13 history edited user19536 CC BY-SA 4.0
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S Feb 20, 2022 at 12:55 review First questions
Feb 20, 2022 at 16:18
S Feb 20, 2022 at 12:55 history asked user19536 CC BY-SA 4.0