If you're like me, you probably got 5000 the first time. Why? Because your brain adds 4 thousands, and by the time you reach the last ten, your brain is tricked into turning the "100" into "1000" because it seems nice. But if you do the math on a calculator (to check, not to cheat :P) or paper and pencil, you'll find:
1000
+ 40
--------
1040
+1000
--------
2040
+ 30
--------
2070
+1000
--------
3070
+ 20
--------
3090
+1000
--------
4090
+ 10
--------
4100
It's easier to see when it's vertical.
--------
2070
+1000
--------
3070
+ 20
--------
3090
+1000
--------
4090
+ 10
--------
4100
It's easier to see when it's vertical.
No comments:
Post a Comment