Interactive
Curated OER

Ratio Problem Worksheet 2

For Students 6th - 7th
Here is a ratio word problem activity in which learners solve a set of eight problems. Answers and hints are available on-line; a reference web site for additional resources is given.
Worksheet
Curated OER

Basic Subtraction Facts

For Students 1st - 2nd
In this finding the differences activity, students use a number line to help fill in the missing blanks in subtraction problems. Students solve 20 problems.
Worksheet
Curated OER

Addition and Subtraction Facts With Six

For Students 2nd
For this computation worksheet, 2nd graders write the four fact families where the sum equals six. Students also solve six subtraction problems that involve the number six.
Organizer
Curated OER

Problem-Solving Strategy: Use Logical Reasoning

For Students 4th - 5th
For this problem-solving worksheet, students solve 1 mathematical word problem by figuring out the answers to 7 questions. Students record their answers on the lines provided.
Unit Plan
Common Core, Inc.

Multi-Digit Whole Number Subtraction

For Teachers 3rd - 4th Standards
A thorough exploration into subtracting multi-digit numbers, this series of lessons is an excellent way to guide learners of any skill level. With a step-by-step lesson plan and straightforward assessment tools, kids are sure to...
Worksheet
Curated OER

Using Addends and Sum/Using Subtrahend, Minuend, and Difference

For Students 2nd - 4th
What is an addend? What is a sum? Review this math terminology on the top half of the worksheet before practicing basic addition. 
Lesson Plan
EngageNY

Addition and Subtraction Formulas 1

For Teachers 11th - 12th Standards
Show budding mathematicans how to find the sine of pi over 12. The third lesson in a series of 16 introduces the addition and subtraction formulas for trigonometric functions. Class members derive the formulas using the distance...
Worksheet
Curated OER

Amusement Park Basic Word Problems

For Students K - 2nd
An interesting set of addition and subtraction word problems awaits your eager learners. This worksheet includes 4 amusement park themes problems to solve.
PPT
Curated OER

Timetable Problems

For Teachers 3rd - 5th Standards
Learning how to read a schedule and determine when you will depart and arrive is an everyday skill that builds competency in chart reading, subtraction, elapsed time, and counting on. Learners discuss how to solve timetable problems and...
Interactive
Scholastic

Study Jams! Number Lines

For Students 3rd - 5th Standards
Step by step, two examples of creating number lines are explained through a series of animations. One is meant to watch at home, the second can be viewed in class, and there is a third tab with two sample problems to try. This skill,...
Lesson Plan
EngageNY

One-Step Equations—Addition and Subtraction

For Teachers 6th Standards
Just one step is all you need to find success in solving equations. The 27th installment in a series of 36 teaches how to solve one-step equations involving addition and subtraction. Tape diagrams help future mathematicians in this task.
Lesson Plan
EngageNY

Two-Step Problems—All Operations

For Teachers 6th Standards
Step 1: Use the resource. Step 2: Watch your class become experts in solving two-step problems. Scholars learn to solve two-step word problems in context. They use tape diagrams and algebraic techniques to break the problem into two,...
Lesson Plan
Illustrative Mathematics

What’s Missing?

For Teachers Pre-K - 1st Standards
Now you see them, now you don't! This fun peek-a-boo activity engages young mathematicians in developing their ability to compose and decompose numbers. After being presented with a series of counters, children close their eyes while the...
Interactive
CK-12 Foundation

Addition of Polynomials: Splitting into Tiles

For Students 8th - 10th Standards
Count on tiles to add polynomials. Pupils drag virtual algebra tiles onto colored mats to represent the sum of two polynomials. The learners count the number of like tiles to find the coefficient of each term. They finish...
Worksheet
Curated OER

Critical Thinking Problems

For Students Pre-K - K
Young mathematicians practice their reasoning as well as adding and subtracting skills with this worksheet that includes five simple word problems about birthdays. Learners are give pictures of birthday cakes and based on the number of...
PPT
Curated OER

2-Digit Subtraction

For Teachers 2nd - 3rd
Here is a presentation which shows forty-eight 2-digit subtraction problems. Learners solve the problems, but there are no answers or any kind of examples for them to practice from.
PPT
Curated OER

Egyptian Counting

For Teachers 5th - 8th
Ancient Egyptian's had a fantastic number system and your class gets to use it to practice basic math skills! They are presented with several examples of Egyptian numbers which they use to complete several addition and subtraction...
Worksheet
Curated OER

Adding and Subtracting Fractions

For Students 5th Standards
Fifth graders put their fraction knowledge to work by reading word problems and deciding whether to add or subtract the given fractions. Terms such as combined, total, difference, and left indicate which operation to use.
Lesson Plan
Curated OER

Understanding Proportions and Scale Drawings

For Teachers 7th - 8th
Proportions are ratios found using multiplication or division. Middle schoolers solve measurement problems, find a figure's missing dimension, and find the distance between two points. Resource features four lesson plans with detailed...
Worksheet
Curated OER

Standard Written Method for Subtraction (2)

For Students 3rd - 5th
In this subtraction worksheet, learners learn how to solve decomposition subtraction problems with 2-digit numbers. They then solve 9 subtraction problems on their own. The answers are on the last page of the packet.
Worksheet
Curated OER

Subtraction Worksheet

For Students 1st
In this subtraction worksheet, 1st graders practice their subtraction skills by subtracting the 4 digit subtraction problems. Students solve 20 problems.
Worksheet
Curated OER

Subtraction

For Students K - 1st
In this subtraction review learning exercise, students practice their problem solving skills as they use counters to solve 2 subtraction problems that require them to subtract 1 digit numbers from 1 digit numbers.
Worksheet
Curated OER

Subtraction 2

For Students K - 1st
In this subtraction review worksheet, students practice their problem solving skills as they use counters to solve 2 subtraction problems that require them to subtract 1 digit numbers from 1 digit numbers.
Lesson Plan
Curated OER

One-Digit Subtraction

For Teachers 1st - 2nd
In this math worksheet, students solve twelve subtraction problems. For each problem, students subtract a one-digit from another one-digit number.

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