Mathematical example and train of thought are discussed on the web
News Internet / / December 29, 2020
Twitter user with nickname @ Wparks91 asked subscribers what was going on in their head when solving example 27 + 48. It would seem that this is an elementary addition of numbers, and the answer is very easy to get. However, the very sequence of actions in the decision was different for many.
Someone found it more convenient to operate with tens and numbers with five.
27+48
=25+2+48
=25+50
=75 pic.twitter.com/WxgzrxbFgQ- Ni hao mmtakabawo (@Sakhile_M_) July 11, 2020
50-48=2
50-27=23
23+2=25
100-25=75- Yusuf 🇵🇸 (@YusufMitha_) July 13, 2020
27+48=20+40+5+5+2+3=75
- Stas Polyakov (@plkv) July 14, 2020
20+48 = 68
68+7=75- SIMAMKELE (@_Shmurds) July 11, 2020
Someone scrolls column addition in their minds.
7+8=(1)5
2+4 = 6(+1)=775 https://t.co/I5NAQLtYwz
- Mango Dog (@rodoss) July 14, 2020
27+48
7+8=15
Carry 1 over
2+4+1=7
=75- Head Girl of Okahao👑 (@ ndayola23) July 12, 2020
But there are also very strange options that look too complicated.
20+48=68
7-5 = 2 (5 in mind)
68+2=70
70 + 5 (get it out of mind) = 75- Artem❌Kamovich (@ArtemKamovich) July 14, 2020
48+30-3=75
- Elijah Greenberg (@noah_herly) July 14, 2020
2+4 = 6
7 + 8> 10, so….
10 — 8 = 2
7 — 2 = 5
6 + 1 = 7
Combine ...
75- Gouka (‘-’ (@Gouka_Mekkyaku) July 13, 2020
30 + 50 ——> 80 - used +5 to even me out so, 80 -5 = 75
- Umayr Sufi (@umayrsufi) July 12, 2020
Used +5 to bring both numbers to tens. Then he subtracted 5.
Yours is prob my first go, but I also like this tactic:
50 — 2 = 48
25 + 2 = 2775 + 0 = 75
- Deep Learning (@ SH2F088) July 14, 2020
And this is probably the simplest option.
Lord, what's wrong with you?
20+40=60
7+8=15
60+15=75 https://t.co/fDTbiUGKqj- Sergey Korol (@krlsrg) July 14, 2020
Although there is even easier.
pic.twitter.com/5IKvraswoN
- Chimango 🔀 (@flellah) July 13, 2020
How would you add these two numbers? Write in the comments.
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