Martrejo’s Weblog

Luis buys dessert three out of every five days he eats lunch at school.  How many times would you expect him not to buy dessert during the first 100 days of school?  Explain how you arrived at your answer.

Explain how to compute the median, mode, and range of a list of numbers.  Then find the median, mode, and range from the following list: 75, 67, 74, 87, 45, 75, 87, 76, 87.

Write two word problems and their corresponding number sentences.

Explain how to write a fraction in simplest form. How do you know when a fraction is in simplest form?

Last week we learned about prime and composite numbers. Please write a definition for prime numbers and list all the prime numbers from 1-100 (hint: look at the sieve of Eratosthenes). Please also write a definition for a composite number and give five examples.  We also talked about the number one. What did we say about it?

We have been studying improper fractions and mixed numbers. In your own words, write what is an improper fraction and  a mixed  number.  Be sure to give an example of each.

Read two division problems from the October 19-25 comments and write the number sentence that is used to solve the problem.  Solve it and write the answer in a complete sentence.

Write a problem that uses division to solve.  Use three-digit dividends and
two-digit divisors.

Read and choose two multiplication word problems from the October 5-9 comments and solve them. Please write your answer in a complete sentence.

The easiest way to find the total number of items in equal groups is to use multiplication. Multiplication allows you to do repeated addition quickly and efficiently.

Write a multiplication word problem using two of the following factors: 75, 12,  34, 15, or 23.    For example:  Joe sold 75 boxes of candy for a fundraiser.  Each box was sold for $12.  How much money did Joe raise?