Activity
Illustrative Mathematics

Hundred Chart Digit Game

For Teachers K - 2nd Standards
Math games, especially in the primary grades, provide great opportunities for developing the number sense of young mathematicians. Working in pairs with a deck of single-digit cards, students take turns drawing two cards and reading the...
Lesson Plan
Curated OER

Ten by Ten

For Teachers K - 2nd Standards
Learners participate in hands-on activities using a hundreds chart and counting toes and fingers. They discover the patterns that are created when counting by ten. After a lecture/demo, students practice by using a worksheet embedded in...
Worksheet
Curated OER

Regroup Ones as Tens: Practice

For Students 3rd - 4th
In this regrouping numbers worksheet, 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.
Worksheet
Curated OER

Liquid Volume and Mass Word Problems

For Students 3rd - 5th
As your scholars become comfortable with liquid mass and volume units, give them these addition and subtraction word problems to help apply the skill. There are no conversion or fraction skills involved. After solving four word problems,...
Interactive
Curated OER

Making Change - Bills And Coins

For Students 2nd - 4th
Here is an interactive instructional activity that allows learners to practice counting change with bills and coins, make change for a dollar, and practice their subtraction skills. The bills used are ones, fives, tens, twenties, and...
Lesson Plan
Curated OER

Ten More and Ten Less

For Teachers K - 3rd
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...
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.
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.
Worksheet
Curated OER

Deciding When to Regroup

For Students 2nd
In this regrouping instructional activity, 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...
Worksheet
Curated OER

Subtraction and Unknown Addends (to 20)

For Students 1st - 2nd
How many more gallons of fuel does Mr. George need to fill his car to capacity? This word problem uses the unknown addend strategy to get scholars subtracting and thinking about the relationship between mathematical...
Worksheet
Curated OER

Relating Facts to Place Value

For Students 4th - 5th
For this place value worksheet, students 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. Students finish with a place value word problem.
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.
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...
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.
Worksheet
Curated OER

Make Ten Bundles

For Students K - 2nd
How many rolls until you get to 100? Young mathematicians will have a blast with this place value game, which has them rolling a die and placing a corresponding number of popsicle sticks in the "ones" column of their mat. Once they get...
Lesson Plan
Primary National Strategy

Ordering and Counting

For Teachers K - 2nd Standards
Are you in need of a 5-day unit intended to teach little learners how to count to 20? This is a well-structured complete set of lessons which employ a variety of methods to instruct learners about various ways to count from 1 to 20. They...
Lesson Plan
Curated OER

100 Or Bust!

For Teachers 3rd - 5th
Elementary schoolers use their understanding of place value to develop a strategy for a number game. For this lesson, pupils use place value to play "100 or Bust" and figure out a good winning strategy. These kinds of math games are...
Worksheet
Curated OER

Number Value Assessment

For Students 2nd - 5th
Quiz your second graders with this set of math worksheets involving place value, word problems, number sequence, greater than/less than, coin value, expanded form, and much more! Most have multiple choice answers provided, and generally...
Worksheet
Curated OER

Ways to Make Hundreds

For Students 2nd - 4th
How many ways can you make 200 using 1s, 10s, and 100s? Learners will build number sense, a basic understanding of place value, and prep for future lessons on expanded form with this simple worksheet. They are given 6 numbers, they write...
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. 
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...
Worksheet
Curated OER

The Hundreds Place

For Students 2nd - 4th
Young mathematicians examine images of counting cubes to determine the value of each set. The arrangement values include hundreds, tens, and ones. Encourage scholars to utilize place value knowledge instead of addition and counting with...
Worksheet
Curated OER

Project Interactive--Stem and Leaf Plotter

For Students 4th - 6th
In this excellent stem and leaf plotter worksheet, students construct, arrange and write a report of how to interpret the leaves they collect in this data analysis. Students answer 4 detailed questions regarding the data analysis...
Worksheet
Curated OER

Regroup Ones and Tens

For Students 3rd - 4th
In this addition instructional activity, students add upward 15 2 and 3-digit whole numbers problems. Students complete 3 tables utilizing Algebra functions and answer 2 test prep questions.