iii@mander.xyz to Casual Conversation @lemm.eeEnglish · 3 days agoI can't do my table of 5's. I always do times 10, divide by 2message-squaremessage-square18fedilinkarrow-up136arrow-down10
arrow-up136arrow-down1message-squareI can't do my table of 5's. I always do times 10, divide by 2iii@mander.xyz to Casual Conversation @lemm.eeEnglish · 3 days agomessage-square18fedilink
minus-squareslacktoid@lemmy.mllinkfedilinkEnglisharrow-up9·3 days agoMy favorite was 9, you decrement the unit position and increment the 10s position
minus-squareboonhet@lemm.eelinkfedilinkEnglisharrow-up3·1 day ago9 is fun. Start counting up and down from 6 and 5 respectively. Multiply by 9. You get two numbers from the same two digits. 54,45. 63,36…
minus-squaresik0fewl@lemmy.calinkfedilinkEnglisharrow-up7·edit-23 days agoOpen your hands and turn down the Nth finger. 9•N is the the number of fingers to the left of it in the 10s position and the number of fingers to the right in the unit position.
My favorite was 9, you decrement the unit position and increment the 10s position
9 is fun. Start counting up and down from 6 and 5 respectively. Multiply by 9. You get two numbers from the same two digits. 54,45. 63,36…
Open your hands and turn down the Nth finger. 9•N is the the number of fingers to the left of it in the 10s position and the number of fingers to the right in the unit position.
What sorcery is this!