Join the Meeting Place for Moms!
Talk to other moms, share advice, and have fun!

(minimum 6 characters)

Mom Confessions Mom Confessions

Mental Arithmetic

Posted by on Mar. 23, 2014 at 5:55 AM
  • 36 Replies

Time how long it takes you to get an answer to the following subtraction problem, in your head.   No writing stuff down, or using a calculator.

427 - 316 = 

Then, when you've done it, reply to this thread saying

    (A) What number did you get as the answer?

    (B) How long did it take you?

    (C) How did you get it?


So, for example, you might reply:

    (A) 42

    (B) 10 seconds

    (C) I counted onwards in 10s, then in 1s.


I'm adding a few bumps, to help you avoid seeing other people's answers before you have a go yourself.

by on Mar. 23, 2014 at 5:55 AM
Add your quick reply below:
You must be a member to reply to this post.
Replies (1-10):
Clairwil
by Silver Member on Mar. 23, 2014 at 5:55 AM

BUMP!

Clairwil
by Silver Member on Mar. 23, 2014 at 5:55 AM

BUMP!

Clairwil
by Silver Member on Mar. 23, 2014 at 5:55 AM

BUMP!

Clairwil
by Silver Member on Mar. 23, 2014 at 5:55 AM

BUMP!

Clairwil
by Silver Member on Mar. 23, 2014 at 5:55 AM

BUMP!

Clairwil
by Silver Member on Mar. 23, 2014 at 5:55 AM

BUMP!

Clairwil
by Silver Member on Mar. 23, 2014 at 5:55 AM

BUMP!

Clairwil
by Silver Member on Mar. 23, 2014 at 5:56 AM

BUMP!

Clairwil
by Silver Member on Mar. 23, 2014 at 5:56 AM

BUMP!

Clairwil
by Silver Member on Mar. 23, 2014 at 5:56 AM

BUMP!

Add your quick reply below:
You must be a member to reply to this post.
Join the Meeting Place for Moms!
Talk to other moms, share advice, and have fun!

(minimum 6 characters)