These problems and puzzles will put your deductive reasoning ability to the test and reinforce your mathematical skills.
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 \( 100-36 \)?