Mental math tricks - part 2

2023-11-20 09:44:47

Mental math tricks - part 2

36 x 25 = 900     480 x 25 =12,000    924 x 2.5 = 2,310

Can you see any tricks for doing these calculations in your head?

An editable Word docx, solutions/hints, and a PowerPoint form of this activity are available to Adventurer members.




Check out our first mental math activity here (2018) ... multiplying by 5, 50, 0.5, etc.

Activity Solutions & Supporting Materials
Share this:
Comments (0)
    Display 1 - 10 Of total 0
    Penny Wars anew
     Act One: Check out all of the pennies! ...
    Video game console sales
       The video game world is constant...
    Who's going back to school?
    Students look at the past and present populati...
    Ladder figuring
       Brian can't even go to his town's ...
    Extra point or 2-point conversion - Updated
    In 2015 the NFL changed the extra point kick...
    Germ-Killing Wipes
    In this activity, students get to di...
    Will this be an El Niño winter?
     The Oceanic Niño Index (ONI) started to show...
    Effects of new MLB rules
    This year new rules ...
    My teacher says this stream is parabolic. Is he correct?
    Instead of asking students to just believe wha...