Waste less time on Facebook — follow Brilliant.
Back to all chapters

Basic Mathematics Warmups

These problems and puzzles will put your deductive reasoning ability to the test and reinforce your mathematical skills.

Mental Shortcuts - Basic Warmup


Which of the following is equivalent to calculating 20% of 36?

Instead of multiplying by 5, it might be easier to multiply by 10.

Which of these is an easier version of \( 72 \times 5 \)?

Which of these gives a nice shortcut to compute \( 34 \times 11 \) in your head?

Which of these is equivalent to \( 8888 \times 5 ?\)

When calculating \( 100-36 \) by hand, we have to do a lot of "borrowing". It would be much easier to subtract from 99 instead. Which of the following is equivalent to \( 100-36 \)?


Problem Loading...

Note Loading...

Set Loading...