No pen/pencil .
No paper .
No calculator .
Just your brain and a timer/stopper/wristwatch.

Start timer NOW.
Put your hands in your pockets and start reading:

Let A=160*35 & B=1400*4

DECIDE, WHICH IS BIGGER (3 CHOICES):
a. B
b. A
c. the same

After deciding upon your answer, take your hands out of your pockets and
-write down your answer
-and the time elapsed.

Posted by patrick rall on 2021-09-03 09:38:04