1) Mean Median Mode

Mean: A mean is when you add all the numbers, and then you divide it by how many numbers that are in the set.
Median: The median is the number in the center of the set. If the set is an even number you add the 2 numbers in the center then you divide it by 2.
Mode: The mode means a number that you see the most.

Find the mean, median, and mode.
*Do in Numerical Order

Question 1: 4, 4, 2, 3, 1, 5, 9
Parents answer:
1 2 3 4 4 5 9
the mean is 4
the median is 4
the mode is 4


2) Square roots

  • Perfect Square: A perfect square is a square that has the same numbers in each side. exp:
  • Square Root: A number multiplied by itself is a square root of a number.
Question 2:*Find the square root of 110.

10 x 10=100 10.? x 10.?= 11 x 11 = 121
121-100=21 110-100=10

10 10/21 JcuAnswers

Question 3:* Is taking 40 % off a given item and then additional 10% off the reduced price the same as taking off 50% off the original price? why or why not.?


Question 4:* Suppose you have a photograph that is 10cm wide and 25cm, long. If you double the width to 20 cm and you want it to be similar what is the new length ? Explain why they are not correct?


Questions 5:* What would the length of the actual building be if the measurement in the scale drawing is 3 inches and the scale is 1/4 inch equals 1 foot?