Activity:

Play with Calculator Riddles

3.5 based on 8 ratings

What You Need:

  • Calculator
  • List of calculator riddles (below)
  • The Calculator Alphabet (below)

What You Do:

 

Use the calculator alphabet below to help find the answers to the following math riddles:

The Calculator Alphabet:

Upside-down numbers: 0 1 2 3 4 5 6 7 8 9

                     Letters: O I Z E h S g L B G

 

Calculator Riddles:

  1. What is the only thing that gets larger the more you take away?

    25,000 – 68 – 952 – 8,956 – 11,320 =

  2. Picture these U.S. Coins: a nickel, a penny, and a dime. OK? Ellie's parents have 3 children. One is Nick and another is Penny. Who is the third?.05 ÷ .01 ÷ .10 × 3 × 211 + 123 =

  3. Bill subtracted numbers for 20 minutes, Bess multiplied them, and Leslie added them.

    • Who was more exhausted when they finished?
      • 9 + 57 + 868 + 7920 + 93,208 + 215,475 =

     

    • Who went into debt when they were finished?
      • ​​17,865 – 9,438 – 607 – 95 – 7 =

     

    • Who got the most work done in 20 minutes?
      • .3 × 2 × 2.6 × 20 × 7.1 × 25 

How likely are you to recommend Education.com to your friends and colleagues?

Not at all likely
Extremely likely