This is how it feels like I'm supposed to do it but I did 20+40=60, 7+8=15, 60+15=75.
7 + 8 = 15, carry the 1, 1 + 2 + 4 = 7, 75. I visually imagine the sums in my mind, like as if I was doing it on paper.https://twitter.com/chipnanimus/status/1301731223673470981 …
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That sounds smart haha. But I am truly terrible at mental math. Anything that requires adding triple digit numbers and my brain shuts down.
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