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Worksheet
Curated OER

Add Tens and Ones

For Students 1st - 2nd
Six story problems challenge young mathematicians to add single- and double-digit numbers. Manipulatives would come in very handy for primary graders tackling this learning exercise. Some of the sums have addends as large as 25 and 33....
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Worksheet
Curated OER

Wacky Windows

For Students 3rd - 4th
In this place value worksheet, students examine 6 pictures of houses with different window shapes that represent hundreds, tens, and ones. Students answer 6 fill in the blank problems where they discover the three digit number...
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Worksheet
Curated OER

Regroup Ones as Tens: Practice

For Students 3rd - 4th
In this regrouping numbers learning exercise, students learn to regroup numbers by writing the tens and ones for each number set and then writing the number. Students finish with one test prep question using regrouping.
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Worksheet
Curated OER

Number Patterns

For Students 3rd - 5th
Which number comes next? The great part about this number sequencing worksheet is that it increases in difficulty so some learners who aren't challenged by the first few will definitely meet their match with the last couple. In each of...
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Printables
1
1
Houghton Mifflin Harcourt

Unit 4 Math Vocabulary Cards (Grade 1)

For Students 1st Standards
Support math vocabulary using a set of 25 flashcards. The set consists of a variety of bold-faced word cards and corresponding labeled picture cards. Terms include even numbers, regrouping, skip counting, and more.
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Printables
1
1
Houghton Mifflin Harcourt

Unit 5 Math Vocabulary Cards (Grade 2)

For Students 2nd Standards
Reinforce math vocabulary with a set of flash cards. Two types make up a set of 10 cards; a word card and a labeled, picture representation. Terms included are estimate, ones, regroup, and more.
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Activity
Curated OER

K-5 Mathematics Module: Number and Number Sense

For Students K - 5th Standards
Reinforce number sense with a collection of math lessons for kindergarteners through fifth graders. Young mathematicians take part in hands-on activities, learning games, and complete skills-based worksheets to enhance proficiency in...
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Organizer
Houghton Mifflin Harcourt

Numbers 11-19

For Students K - 2nd Standards
Develop the concept that numbers from 11 to 19 are essentially a 10, plus more! The first two of the six story problems on this sheet are scaffolded with pictures. Learners compose and decompose numbers to answer how many 10s and how...
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PPT
Curated OER

Multiplication PowerPoint

For Teachers 3rd - 4th Standards
Providing a step-by-step explanation of two-digit multiplication, a list of vocabulary words associated with this concept, and great examples, this resource would be a terrific classroom addition. Besides the set of of simple...
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Lesson Plan
Curated OER

Study Buddies: Adding Two-Digit Numbers

For Teachers 1st - 2nd
Some times a simple lesson is all you need. Here are 2 worksheets that can be used as a lesson on problem solving, addition, and partner work. The first worksheet has learners use a tens and ones charts to practice adding simple...
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Worksheet
Curated OER

Borrow to Subtract

For Students 2nd - 3rd
In this finding the difference worksheet, students subtract two-digits from two-digit numbers written in tens and ones boxes with regrouping. Students solve 12 problems.
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Worksheet
Curated OER

Deciding When to Regroup

For Students 2nd
In this regrouping worksheet, 2nd graders complete a chart by determining whether 5 subtraction problems need to be regrouped or not and writing the tens and ones on the lines provided for each one. Students study the first one done for...
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Lesson Plan
Curated OER

Representing Numbers to 50

For Teachers 1st
In this mathematics worksheet, 1st graders identify two-digit numbers that show tens and ones. Then they write how many tens and ones there are and place the number in the boxes given.
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Worksheet
Curated OER

Decide When to Regroup - Reteach

For Students 3rd
In this addition worksheet, 3rd graders decide when to regroup in addition problems after reviewing the steps. They use a workmat and place value blocks as they complete 4 problems. They identify how many tens and ones there are and...
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Lesson Plan
Curated OER

Chisanbop (Korean Counting to 99)

For Teachers 1st - 3rd
Students practice their counting skills. For this counting lesson, students discover the Chisanbop method of counting which allows them to quickly count to 99 using their hands.
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Organizer
K-5 Math Teaching Resources

Base Ten Hundreds Flats (4 per Page)

For Students K - 2nd Standards
Looking for a base 10 hundreds flat? Look no further! Here, you'll find four base 10 hundreds flats with space to write under each model. 
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Lesson Plan
Curated OER

Place Value to 1,000

For Teachers 2nd
Second graders study the concept of place value with hundreds, tens, and ones. In the place value lesson, 2nd graders demonstrate their prior knowledge of place value with tens and ones. Students are then introduced to place value with...
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Lesson Plan
Curated OER

Two-Digit Addition With Regrouping

For Teachers 2nd
Second graders practice two-digit addition with regrouping. In this addition instructional activity, 2nd graders use craft sticks to solve two-digit regrouping problems. Students solve problems on the chalkboard.
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Worksheet
Curated OER

Regroup Ones as Tens: Homework

For Students 3rd - 4th
In this regrouping numbers worksheet, students learn how to regroup ones as tens to find a given number. Students solve five problems using regrouping.
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Lesson Plan
Curated OER

How Many More on a Graph?

For Teachers 1st
First graders identify a number that is one more or one less than a number up to one hundred and identify a mystery number. They also create a class graph that illustrates how many children are in each family, and answer questions about...
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Worksheet
Curated OER

Relating Facts to Place Value

For Students 4th - 5th
In this place value worksheet, learners use the given number and write how many tens and ones are in each number. Students draw a line to the matching number sentences for each place value. Learners finish with a place value word problem.
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Lesson Plan
Curated OER

Carrying to Tens

For Teachers 2nd - 3rd
For this math worksheet, learners learn to carry to the tens place in addition. Students solve 8 problems, each with pictures of tens rods and cubes which illustrate the concept.
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Worksheet
Curated OER

Regroup Ones as Tens: Problem Solving

For Students 3rd - 4th
In this regrouping numbers worksheet, students read the word problems and then solve by regrouping the numbers in the ones as tens. Students solve four problems.
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Lesson Plan
Curated OER

Two-Digit Subtraction With Regrouping

For Teachers 2nd - 3rd
Learners practice their subtraction skills by solving 2 digit subtraction equations the teacher lists on the board. For this subtraction with regrouping lesson, students use the regrouping method to solve the 2-digit subtraction equations.