Curated OER
Solving Equations
How do you solve a problem when a symbol or letter is used in place of a missing number? Build algebraic reasoning and problem solving skills with this presentation that explains three methods for finding a missing variable. The guess...
Curated OER
Missing Number
First graders examine how to use a symbol and shape variable to represent a missing value in a mathematical equation. They listen to the book "Fish Eyes" and "One Less Fish," and observe the teacher write an equation represented for each...
Illustrative Mathematics
Find the Missing Number
First graders are asked to find the missing numbers in subtraction and addition equations. Each missing number is represented with a box and appears as an addend, subtrahend, sum, or difference.
Curated OER
Find the Missing Exponent
Here is a missing exponent worksheet in which learners solve for the exponent in the problem that is represented by a variable. They complete six problems.
Curated OER
Variables and Open Sentences
Fourth graders examine the purpose of variables and identify the missing variable in open sentences. They observe the teacher solve a variety of problems, complete a worksheet as a class, and independently complete another worksheet. ...
Curated OER
Solving for Missing Proportions
In this missing proportions worksheet, students solve for the variables that appear in the proportions with one, two, and three digit numbers. Students complete 10 problems total.
Curated OER
Solve for Missing Ratios
In this ratios worksheet, students solve for the variable in the ratios containing one and two digit numbers. Students complete 10 problems total.
Math Drills
Missing Numbers in Equations (B)
Third and fourth graders use the divisors, dividends, and quotients to discover the missing numbers. They solve 32 problems in all, and fulfill the requirements of CCSS.Math.Content.3.OA.4
Curated OER
Addition: Number Bonds to 10
You have the answer and a variable, but something is missing! The class fills in the missing addend in 23 practice problems that all add up to 10. This is a great way to build number sense, pattern recognition, and automaticity.
Charleston School District
Solving for a Missing Dimension
If a can has a volume of twelve ounces, how tall it should be? If you can work with volume formulas, it's is an easy measurement to find. After finding the volume of figures in the previous lesson of the series, learners now apply the...
Curated OER
Missing Composite Base
In this variables with exponents worksheet, students solve for the variable when given an exponent and the number it equals. Students complete 6 problems total.
Curated OER
Find the missing base
In this missing base learning exercise, students find the value of the variable in problems with exponents. Students complete 6 problems.
Curated OER
Missing Numbers in Equations (B)
In this elementary algebra worksheet, students fill in the missing numbers in 32 equations. They use the given information to find the missing factor in each single digit multiplication problem.
Curated OER
Missing Numbers in Equations 3
In this missing numbers in equations worksheet, learners solve for the missing number in a set of 32 equations; answers are included on page 2.
Curated OER
Missing Numbers in Equations 6
In this missing numbers in equations worksheet, students solve for the missing number in a set of 32 equations; answers are included on page 2.
Curated OER
Missing Numbers in Equations 7
In this missing numbers in equations worksheet, learners solve for the missing number in a set of 32 equations; answers are included on page 2.
Curated OER
Missing Numbers in Equations 9
For this missing numbers in equations worksheet, students solve for the missing number in a set of 32 equations; answers are included on page 2.
Curated OER
Missing Numbers in Equations
In this equations worksheet, students determine missing numbers to make equations true. A website reference for additional resources and answers are provided.
Willow Tree
Formulas
Help learners understand the benefits of rearranging a formula. Scholars practice rearranging formulas for specific variables. They also analyze formulas to understand one variable's effect on the other.
Curated OER
Developing the Concept: Percents
In this percents lesson, learners review how to solve a multiplication equation where they must solve for a variable. They solve equations with missing numbers and percents.
BW Walch
Solving Linear Inequalities in Two Variables
Although graphing a linear inequality on the plane is but a few steps added onto the graphing of a linear equation, for many learners the logical leap is quite intimidating. This approachable PowerPoint presentation breaks graphing...
Curated OER
Test #2 Equations Review
In this equations review learning exercise, students solve algebraic equations with one variable. They use inverse operations to solve for the unknown. Students translate word sentences to number sentences and then solve. This...
Curated OER
Crack the Code
Algebraic equations are the focus of this math presentation. Learners must find the missing variable in a variety of algebraic equations. The equations get more complex as the PowerPoint goes on. Very good practice for emerging algebraic...
CK-12 Foundation
Linear Pairs
Pair up this resource with a lesson on linear pairs. Scholars solve for missing variables and values of angles in linear pairs. They use an interactive to help with this endeavor.