Scholastic
Study Jams! + and - Without Regrouping
Addition and subtraction are essential skills for all young mathematicians. Explain the step-by-step process with respect to place value using these real-world examples. Focus is on numbers in the tens, hundreds, and thousands, making...
Curated OER
Adding and Subtracting Fractions with Like Denominators
Students add or subtract fraction parts of mixed numbers before adding or subtracting the whole number parts. In this fractions lesson, students learn to use a ruler to help them add and subtract fractions with like denominators.
Curated OER
Investigation - Who is Right?
Third graders investigate two mathematic scenarios and determine which is correct. They compare adding columns and places (such as the tens place, hundreds place, and so on) and familiarize themselves with how to add larger numbers.
Curated OER
Adding and Subtracting Money
In this math worksheet, students solve problems involving money. The first problem has four questions that guide the student through the problem solving process. The final four problems are computation problems involving money, but are...
Curated OER
Adding/Subtracting--More Than/Less Than
In this adding and subtracting numbers instructional activity, students write down 10 more than the number states in 10 numbers and write what is 10 less in 10 additional numbers.
Maths Blog
Adding/Subtracting Whole Numbers in Your Head
Exercise those mental math muscles! This learning exercise contains 10 addition and 10 subtraction problems which require learners to compute sums or differences in their heads. A quick review at the top of the page provides a strategy...
Savvas Learning
How Many Hundreds?
Mental math skills are really important to develop. Kids practice metal computation by first adding the hundreds then the tens and ones. There are nine addition and nine subtraction problems to solve. This attractive learning exercise is...
Curated OER
Adding With Whole Tens
In this addition worksheet, students use pictures of bars and numeric problems to add whole tens and complete addition problems. A website reference is given for additional activities.
Curated OER
Carrying to Tens
in this addition worksheet, students read about carrying tens, then complete 13 problems, circling cubes as directed and solving. A website reference is given for additional activities.
Curated OER
Ten More and Ten Less
Get learners to analyze two-digit numbers based on place value, and use manipulatives to add and subtract both 1 and 10. A place value chart is available, and you can project it during guided practice. Through visualizing numbers,...
Curated OER
Adding/Subtracting--More Than/Less Than
In this counting in 10s worksheet, students look at 10 numbers and write down 10 more for each number. Students look at an additional 10 numbers and write down what is 10 less than in each number.
Curated OER
Stamps and Yo-yo
Young scholars discuss items people collect, such as stamps and baseball cards, solve related word problems to practice adding and subtracting tens, complete worksheet, and share items they do or would like to collect with classmates.
Curated OER
Mental Math Strategies
In this mental math worksheet, students study the detailed instructions and examples for adding or subtracting numbers using "breaking apart" or compensation. Students solve 17 mental math problems.
Curated OER
Two Digit Addition with Regrouping
Students explore the concept of "regrouping." In this 2-digit addition with regrouping lesson, students create visual representations of combinations that equal ten using a tens frame. Students use manipulatives to represent the tens...
Curated OER
Place Value and Subtraction With Regrouping
In this place value and subtraction instructional activity, students place pennies in the chart and use them to put numbers in the correct place value and subtract. Students use the pennies as ones and use them in regrouping.
Curated OER
Addition Strategies: Compensation
In this math worksheet, students learn the addition strategy of compensation: adding an easy number like 10, 20 or 30 and then subtracting a very small number like 1 or 2. Students solve 12 problems on the page.
Have Fun Teaching
Base 10 Blocks
Base ten blocks are a great tool for teaching young mathematicians about a number of math concepts, unfortunately they aren't always available to teachers. That is, until now. This printable resource allows all children the opportunity...
Curated OER
Study Buddies: Dividing Two-Digit Numbers
In this math worksheet, students will works with a coach to solve a story problem in which they must divide a two digit number by a single digit number. Students will follow a step-by-step process and notes are provided for the coach.
Curated OER
Understanding number to 100
Students research equivalent representations of numbers using the base 10 system. In this Base 10 instructional activity, students examine place value, representations of numbers, and multiples of one, ten, and one-hundred.
Curated OER
Investigation - Who is Right?
Third graders explore mathematics by solving problems in groups. In this math functions lesson, 3rd graders demonstrate their understanding of addition and subtraction by completing two digit math problems. Students define a list of math...
Curated OER
2 digit addition
For this addition worksheet, students solve 2 digit addition problems with regrouping. Students solve 12 addition problems and have a review in the beginning.