A family math night at school includes the following activity. A bag is filled with 10 small counting bears that are identical except that 4 are yellow and the rest are blue. A sign next to the bag gives instructions for the activity Win a prize if you guess the correct number of yellow bears in the bag! There are 10 bears in the bag. Some are yellow and the rest are blue. Here's what you do: Reach into the bag, mix well, and pick out a bear Get a sticky note that is the same color as your bear, write your name and your guess on the note and add your note to the others of the same color Put your bear back in the bag, and mix well The sticky notes will be organized into columns of 10, so it will be easy to count up how many of each there are How will students be able to use the results of this activity to estimate the number of yellow bears in the bag? 1.

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Percentage

A percentage is a number indicated as a fraction of 100. It is a dimensionless number often expressed using the symbol %.

Algebraic Expressions

In mathematics, an algebraic expression consists of constant(s), variable(s), and mathematical operators. It is made up of terms.

Numbers

Numbers are some measures used for counting. They can be compared one with another to know its position in the number line and determine which one is greater or lesser than the other.

Subtraction

Before we begin to understand the subtraction of algebraic expressions, we need to list out a few things that form the basis of algebra.

Addition

Before we begin to understand the addition of algebraic expressions, we need to list out a few things that form the basis of algebra.