Worksheet
Curated OER

One-Digit Addition and Subtraction [F]

For Students 1st - 2nd
In this addition and subtractions activity, students solve a total of 49 problems; all problems use one-digit numbers. Answers are included on page 2.
Worksheet
Curated OER

Two-Digit Addition and Subtraction (C)

For Students 2nd - 4th
In this addition and subtraction practice worksheet, students sharpen their math skills as they solve 49 problems that require them to add and subtract 4-digit numbers.
Worksheet
Curated OER

One-Digit Addition and Subtraction [I]

For Students 1st - 2nd
In this addition and subtraction instructional activity, students complete a total of 49 problems, all using one digit numbers. Answers on page 2.
Worksheet
Curated OER

Number Line Addition

For Students 2nd
In this addition worksheet, 2nd graders add single digit numbers. Students complete 12 horizontal problems using the number line provided at the top of the page.
Worksheet
Curated OER

One-Digit Addition and Subtraction [G]

For Students 1st - 3rd
In this addition and subtraction instructional activity, learners complete a total of 49 problems, all adding or subtracting one digit numbers.
Lesson Plan
Curated OER

Count on Math

For Teachers 3rd - 8th
Students develop number sense up to a million.  In this developing number sense up to a million lesson, students count their breaths in given time span.  Students use blocks representing 10's and 100's to create a...
Worksheet
Curated OER

Model Adding 2-Digit Numbers

For Students 2nd - 3rd
In this adding two-digit word problems activity, students and equations with and without regrouping. Students solve six problems.
Worksheet
Curated OER

Family Letter and Algebra

For Students 7th - 9th
In this algebra worksheet, students receive a parent informational letter. The letter discusses what will be covered in algebra that school year and has an ordering integers activity.
Worksheet
Curated OER

Add 19 to Any 2-Digit Number

For Students 2nd - 4th
In this addition worksheet, students solve 18 problems in which the number 19 is added to a two-digit number. No hints or examples are provided.
Worksheet
Curated OER

One Digit Addition; With Regrouping-Z

For Students 1st - 2nd
In this math worksheet, students add two single digit numbers. The worksheet has the silhouette of a bat in the background. Problems are presented in column format.
Worksheet
Curated OER

Quaternions

For Students 11th - 12th
In this quaternions learning exercise, students solve and complete 7 different problems. First, they read and identify quaternions as expressions in a given form of ordinary real numbers. Then, students add and subtract a few problems by...
Worksheet
Curated OER

Addition and Subtraction of Rational Expressions

For Students 9th - 11th
For this rational expression worksheet, learners add and subtract fractional expressions. They completely factor the numerator and denominator. Explanations and examples are provided at the beginning of the document. This two-page...
Worksheet
Curated OER

Arithmetic: Fractions

For Students 3rd - 6th
In this fractions instructional activity, students add positive and negative fractions with unlike denominators. They compute a fractional part of a number. This six-page instructional activity contains approximately 20 problems....
Worksheet
Curated OER

Arithmetic Operations With Numbers

For Students 9th
In this arithmetic operations worksheet, 9th graders identify and solve 48 different problems that include applying Arithmetic operations with various types of numbers. First, they simplify each of the expressions using integer...
Worksheet
Curated OER

Integers

For Students 8th
In this integers worksheet, 8th graders solve 10 various types of problems to include rewriting each statement using the convention for Positive integers and then calculate their answer. They also rewrite each statements without the...
Lesson Plan
Curated OER

Problem Solving Process: One-To-One Correspondence

For Teachers 1st
First graders observe and demonstrate a variety of problem solving strategies to solve problems involving one-to-one correspondence and whole numbers to 100. They discuss the steps of the problem solving process, and solve a word...
Lesson Plan
Curated OER

Dividing by 4's

For Teachers 3rd
Third graders explore math functions by completing problem solving activities. In this division lesson plan, 3rd graders utilize the division strategies acquired earlier to divide multiple digit numbers by 4's. Students complete problems...
Worksheet
Curated OER

Math Review

For Students 2nd - 3rd
In this review of math skills worksheet, students determine elapsed time in minutes, compare two-digit numerals, add values of money, identify an addition property and a solid figure. Students solve five problems.
Worksheet
Curated OER

Add and Subtract within 20 - Guided Lesson Explanation

For Students 2nd
Provide second graders with an explanation for how to find the total value of numbers written in a series of boxes.. The resource provides answers and explanations for problems on a referenced worksheet that is not included.
Lesson Plan
Curated OER

Mystery Math

For Teachers 6th - 8th
Here is an interesting "trick" your young mathematicians can perform. They are taught how to find any number's "digital root," by following a set of detailed instructions. The process works for any number, and is the type of math puzzle...
Worksheet
Curated OER

Adding 2-Digit Numbers (Crossing 10)

For Students 1st - 2nd
In this addition worksheet, learners add the two given two-digit numbers. Students complete nine different problems and solve by segmenting the numbers crossing ten.
Assessment
EngageNY

Mid-Module Assessment Task: Grade 7 Module 2

For Students 7th Standards
A seven-question assessment determines how well your learners understand the procedures to add, subtract, multiply, and divide signed rational numbers. Pupils show their understanding through problem-solving situations. 
Lesson Plan
EngageNY

Decimal Expansions of Fractions, Part 1

For Students 8th Standards
Is it possible to add infinitely long decimals? As pupils complete the examples in the ninth lesson of this 25-part series, they determine that adding these decimals cannot be done without error. Their task is then to determine the size...
Lesson Plan
Curated OER

Investigation-Reasoning and Proof

For Teachers 3rd
Third graders determine the outcome of each of the following situations and justify their findings: even number + even number = ?, even number + odd number = ?, odd number + odd number = ?, and odd number + even number = ?.

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