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
    Everything Royal Wedding
      Friday, April 29, 2011, at 11:00 a.m. will...
    Voyager on the edge
    The two Voyager space probes are in the news rec...
    Spider-Man continues
     Spider-Man: No Way Home opened on Decem...
    Where should I drop my puck
      Act 1 - Give students time to view the gam...
    How should I spend my rewards?
    There's a new way to earn rewards at many groc...
    Fine
    TJ Watt was fined for roughing the ...
    Do I have enough wrapping paper?
     In this problem based activity students...
    What's interesting about this number?
      Why did we put it on YummyMath today? ...
    Heating with wood - What's a cord?
    Do you know what a cord of wood looks like? What s...
    Giant chocolate bunnies
    What can you deduce about these bunnies f...