Archive for the Category »Math «

Multiplying Negative Numbers

In math we learned how to multiply negatives. If you multiply one negative and one positive, it’s a negative. If you multiply 2 negatives, it’s a positive. So -2 times 4 is -8. -2 times -4 equals 8.

Math Riddle

I looked for some math riddles this week, and I found a few good ones. There are more on this website: http://www.mathwarehouse.com/riddles/math-riddles.php

Here are a couple that I liked:

How can you use 8 8s to get to 1,000 using only addition. Hint: you can make the 8s multiple digits, like 88. Click the link to find the answer.

Two fathers and two sons sat down to eat eggs for breakfast. They ate exactly three eggs, each person had an egg. Click the link to find the answer.

 

 

Adding Integers

In math, we learned how add integers. Here’s an example.

In math this week, we learned how to identify graphs and make graphs to show change. Here is an example.

Solving Variables

In math, we learned how to solve variables. Here is an example.

Happy Pi Day!

On March 14, we celebrated pi day. To celebrate, we completed a packet and, of course, had pie. I made a word search of some words related to pi. Pi may appear more than once. 

Graphing Shapes

In math this week we learned how to graph shapes on a cordinate grid. I created a rectangle with the ordered pairs listed. 

Coordinate Plane

In math this week, we learned about the coordinate plane. I drew an example  with 2 different ordered pairs. 

Finding Volume

In math we learned how to find volume. Here is an example. (Shape not drawn to scale)

Finding the Area of a Triangle

This week in math we learned how to find the area of a triangle. You multiply the base times height and divide by two. Here is an example.