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
    Big gulp
    Do you or your students love sugary drinks? &nbs...
    Dunkin's Go2s
    Last year, Dunkin Donuts offered a great deal fo...
    I need help raking my leaves
    Brian has spent too much time thinking about his l...
    Monopoly
    In the board game, Monopoly, does a property...
    Is this possible?
    Brian Shoemaker, a Newton, MA mathematic...
    Man paid in 500 pounds of greasy pennies!
        A man from Georgia, Andreas ...
    Cost of light bulbs
     This activity has been updated (2026). See t...
    Giant chocolate bunnies
    What can you deduce about these bunnies f...
    Why Does it Stay in Orbit?
          Students will ...
    How much do the movie tickets cost?
    Ooops! I was supposed to buy 4 adult and 2 ch...