Interactive
CK-12 Foundation

Estimation to Check Decimal Multiplication: Watering a Garden

For Students 6th Standards
Mathematicians solve six multiple-choice and true or false questions using their knowledge of estimation and multiplying decimals. The interactive provides a garden-themed tool that creates a visual aid of three watering cans to assist...
Interactive
CK-12 Foundation

The Percent Equation: Soccer Stadium

For Students 6th - 8th Standards
A soccer-themed interactive challenges mathematicians to solve five questions involving percent equations. Question types include multiple-choice, fill in the blank, true or false and a discussion. A color-coded stadium with movable...
Interactive
Curated OER

Problem Solving: Write an Equation

For Students 2nd - 3rd
In this equation instructional activity, students read a simple word problem, write an equation to solve it, then write their own story problem and equation.
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Scholastic

Study Jams! Proportions

For Students 4th - 7th Standards
Join Zoe and Sam as they use proportions to budget money for their Green Earth Club. Watch as they set up and solve a series of proportions using cross multiplication and division. A great resource that brings together prior knowledge of...
Interactive
Scholastic

Study Jams! Rate

For Students 4th - 6th Standards
Zoe is reading books over vacation and wants to know at her current rate, how many will she finish by the end. Building on prior knowledge of fractions and ratios, young mathematicians learn how equivalent rates are used to answer her...
Interactive
Curated OER

Related Problems: Challenge

For Students 1st - 3rd
In this related problems instructional activity, students read a word problem, then solve a series of questions relating to it. Students then write a word problem and an equation to solve.
Interactive
Curated OER

Identify the Pattern to Find the Letter to Replace the ?

For Students 7th - 12th
In this problem solving puzzle, students identify the pattern to find the letter that should be placed in the box with the ?.  The solution is provided.
Interactive
Curated OER

Grammar, Vocabulary and Idioms

For Students 4th - 8th
In this online interactive English practice worksheet, students use their problem solving skills to answer 10 multiple choice and fill in the blank questions. Students may submit their answers to be scored.
Interactive
Curated OER

Grammar, Vocabulary and Idioms

For Students 5th - 8th
In this online interactive English practice worksheet, students use their problem solving skills to answer 10 multiple choice and fill in the blank questions. Students may submit their answers to be scored.
Interactive
Curated OER

Addition-Carrying Over

For Students 2nd - 4th
In this addition learning exercise, students add one digit and two digit numbers using carrying. There are thirty problems to solve. Students can complete learning exercise online and submit answers.
Interactive
Curated OER

7-2 Self Check Pythagorean Theorem Multiple Choice

For Students 8th - 10th
Middle and high schoolers use the Pythagorean Theorem to determine the length of the sides of a right triangle. They solve distance problems. This one-page activity contains 10 multiple-choice problems. This is self-checking activity.
Interactive
Curated OER

Advanced Math Problems

For Students 6th
In this grade 6 math worksheet, 6th graders answer a set of 20 multiple choice questions. Answers may be submitted and checked on-line.
Interactive
Curated OER

Four Rectangle Perimeter Problems

For Students 6th - 9th
In this perimeter worksheet, students find the perimeter of four rectangles.  Explanations, examples, and solutions are provided.
Interactive
Curated OER

Basic Proportions Worksheet

For Students 6th - 8th
In this middle school mathematics worksheet, students use cross multiplication to solve proportions. The interactive worksheet has a "step-by-step" link for an in-depth solution. The one page worksheet has twenty problems.
Interactive
Curated OER

Similar Polygons

For Students 7th - 8th
In this similar polygons worksheet, students identify the corresponding sides of polygons.  They use proportions to solve problems.  Students determine the scale factor of similar figures.  This two-page worksheet contains...
Interactive
Curated OER

Expressions from Sentences

For Students 7th - 9th
In this algebra worksheet, students rewrite sentences into algebraic equations using variables and solve for the unknown. There are 10 interactive questions with an answer key.
Interactive
Curated OER

Exponent Basics

For Students 9th - 11th
In this exponent worksheet, students examine multiplication problems and rewrite them using exponents. They solve problems with exponents. This one-page worksheet contains 21 problems.
Interactive
Curated OER

Prime Factorization

For Students 6th - 8th
In this prime factorization worksheet, middle schoolers solve 7 multiple choice problems. Students find the prime factorization of 91, 84, 78, 70, 67,63, and 36.
Interactive
Curated OER

Getting More: Addition-1-6

For Students 1st - 3rd
In this addition worksheet, students solve 3 word problems about "getting more," then write a story problem of their own and solve.
Interactive
Curated OER

Addition and Subtraction

For Students 1st - 2nd
For this addition and subtraction worksheet, students enhance their addition and subtraction skills by completing the 42 problems.
Interactive
Curated OER

Where Did He Spend His Fortieth Birthday Given the Clues

For Students 7th - 11th
In this logic problem, students solve where a man spent his fortieth birthday given clues.  Some of the clues are given as fractions/ratios.  The solution is provided.
Interactive
Curated OER

Simplifying Fractions

For Students 8th - 10th
In this algebra worksheet, students simplify fractions using common denominators. They solve using addition and subtraction. There are 6 questions with an answer key.
Interactive
CK-12 Foundation

Dungeon Simulation

For Students 9th - 12th Standards
Tommy is stuck in a dungeon and can only escape if you can discover the correct formula for velocity! Through trial and error, scholars enter the velocity required for Tommy to reach the elevator at the proper time. Then they extrapolate...
Interactive
Curated OER

Addition and Subtraction

For Students 1st - 2nd
In this addition and subtraction worksheet, students solve the double digit addition or subtraction problems. Students solve 14 problems.