### Calculator Skills 02: Calculator Talks!

Let's key the digits 1, 2, 3, 4, 5, 6, 7, 8, 9, 0 into the calculator. Look at what's displayed on the

calculator output screen. Turn the calculator upside-down.

**Do they look like any letters in the alphabet?**

For example:

The digit

**0**becomes O, 1 becomes I,**2**becomes Z,**3**becomes E,**4**becomes h,**5**becomes S,**6**becomes g,

**7**becomes L,

**8**becomes B, and

**9**becomes G.

Let's try the following:

- enter 6.2
- multiply this by itself
- add 0.23
- divide by 50

Let's see what we have for breakfast:

- multiply this by 1000
- divide the result by 6
- throw away the part to the right of the decimal (what is the TECHNICAL term for this???)
- subtract 3 from the result. Mmm! Delicious!
- But be sure to throw the ( 68 x 68 - 7 ) x 5 x 5 x 5 + 220 in the trash!

- Does the ( 19 + 19 - 1 ) x 19 + 2 x 3 x 5 have (47 x 47 + 10 x 10 ) x 5 x 5 - 3 x 3

- Is there one in your neighbourhood 1 / 50 ?
- What about the 2 x 13 x 13 ?
- Or the 3 x 3 x 3 x 3 x 101 - 3000?
- The (50 x 50 x 3 + 1) x 6 - (50 x 50 x 4)?

(Of course, the plural of (50 x 50 x 3 + 1) x 6 - (50 x 50 x 4) is (8 - 1) x 8 x ( 8 x ( 8 x (8 + 1 + 1) - 1 ) - 1 ), isn't it.)

**Now, create a secret code that and post it in the Padlet!**

Each unique expression resulting in word will worth...

- Expressions involving +, -, x, ÷ will gain the 3 points
- Expressions involving squares, cubes and roots will gain 1 bonus point (on top of 3 points)
- Expressions phrase made up of 3 or more words will gain 10 points

**Remember to add your name and group number to the title of the post.**

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