Parts of the Calculator

Fraction Bar key

What does the fraction bar key on the calculator do?

• Makes the number negative

• Separates the numerator and denominator

• Adds 5 to your answer

Pi key

CHOOSE 2 ANSWERS

What is Pi and what number shows when you press the Pi key?

• The area of a square

• An irrational number representing the ratio of a circle's circumference to its diameter

• 3.1415927

• 54321

Fraction to Decimal / Decimal to Fraction key

What does the "Fraction to Decimal" key do?

• Reduces the fraction to the lowest form

• It changes a fraction to a decimal and a decimal to a fraction

• Multiplies the answer by 3

Square Root key

What is a square root?

• Uses repeated addition to find multiples

• The number that, when multiplied by itself, gives back the original number.

  Ex. The square root of 25 is 5

  because 5 x 5 = 25

• dividing a number by another number

What key do you press to undo or reverse the square root?

• press the number 0

• press the FIX key

• press the x² key

What operation does this key perform?

• subtraction

• square root

• multiplication

Percent key

CHOOSE 2 ANSWERS

What is a percent and what does the percent key do?

• A ratio that compares a number to 100.

• It converts an entered percent to the decimal equivalent

• Provides the lowest common denominator

• Reduces the answer by half

Positive to Negative / Negative to Positive key

What does the positive to negative key do?

• It indicates an operation that changes a number from positive to negative or negative to positive

• It signifies an operation that only changes positive numbers to negative

• It represents the addition of two numbers

What does the exponent "4" tell you to do ?

• It tells you to copy the 7 -

  4 times,

  then multiply for the answer

  7 x 7 x 7 x 7 = 2,401

• It tells you to copy the 7 -

  4 times,

  then add for the answer

  7 + 7 + 7 + 7 = 28

• It compares a number to 100

Unknown Base - Squared/to the Second Power key

What does the key " x² " do?

• Assigns a random

  number to X

  than divides by 2

• Adds the numbers together

• Takes the number you enter and multiplies it by itself.

  EX. Enter 3, and it calculates

  3 x 3 = 9