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Worksheet
Curated OER

Place Value and Expanded Form

For Students 1st - 3rd
Numbers can take many forms. Learners practice translating one form to another in this place-value worksheet. They start with a word-form number and choose which of six three-digit numbers is less than (the worksheet uses the term below,...
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Lesson Plan
Curated OER

Counting Seeds

For Teachers K - 2nd
Students practice skip counting strategies, estimation, and higher number addition. They estimate the number of seeds in bell pepper, and count seeds in groups of tens and ones after the teacher removes seeds from the pepper.
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Lesson Plan
Curated OER

Groups of Ten Ones

For Teachers 1st - 3rd
In this place value worksheet, students circle groups of "ten cubes" and write how many tens they counted all together. Students are grouping cubes in ten's.
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Lesson Plan
Illustrative Mathematics

Comparing Numbers

For Teachers K - 2nd Standards
Young mathematicians spin their way to a deeper number sense with this fun, collaborative activity. Using two spinners, one with the numbers 0-9 and the other with the decades 00-90, pairs of students take turns building and comparing...
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Lesson Plan
Curated OER

An Easier Way to Count: Using Groups of 10

For Teachers 1st - 2nd
Students explore their counting skills. In this counting lesson, students group objects in sets of 10 to practice counting them. Students also practice graphing the sets of objects they count.  This lesson incorporates the use a video...
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Worksheet
Curated OER

Same and Different

For Students 1st - 2nd
For this mathematics learning exercise, learners first complete the tens place and then add the rest. Then they continue the patterns and compare each column. Students also fill in the missing addends and solve various word problems by...
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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...
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Lesson Plan
Illustrative Mathematics

“Crossing the Decade” Concentration

For Teachers K - 2nd Standards
Young mathematicians concentrate on learning to fluently count. Following the rules of the classic game Memory, children take turns flipping over cards in order to find pairs of numbers that cross a decade (e.g. 29 and 30). For younger...
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Lesson Plan
Curated OER

Place Value Popsicles

For Teachers 1st - 2nd
Students play a place value game using popsicle sticks and dice. They investigate units and tens.
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Worksheet
Curated OER

Two-Digit Numbers Ending in 8 or 7

For Students 1st - 2nd
In this mathematics instructional activity, students circle the dots to form a complete ten and compare their problem to the one with just ones' digits. Then they add each problem and write down the corresponding problem with just the...
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Lesson Plan
Curated OER

Groups of Ten Ones

For Teachers 1st - 2nd
In this "groups of ten" worksheet, students circle groups of ten cubes, then write how many rows of tens they have. Worksheet includes a brief introduction to counting groups of ten.
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Worksheet
Curated OER

Ones and Tens Place Value

For Students 1st - 3rd
As scholars examine place value, these exercises help them incorporate addition and grouping. First, they answer three missing-addend questions, each with 10 as the given addend. Because all of the missing numbers are single-digit, this...
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Lesson Plan
National Security Agency

Expanding Place Value

For Teachers 1st - 3rd Standards
Learners explore place value. This incredibly thorough and valuable mathematics instructional activity, has students make a number wheel to assist in the completion of a Place Value worksheet. Students use manipulatives and a place value...
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Lesson Plan
NTTI

Putting Together Ten

For Teachers 1st - 2nd Standards
Groups explore sets of 10 items in two varieties (i.e. 3 white buttons and 7 black ones, or 5 bears and 5 bunnies). They brainstorm about their objects, write math sentences to represent what they have, and report their discoveries to...
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Worksheet
Curated OER

Understanding Place Value, Up to 3-Digit Numbers

For Students 1st - 3rd Standards
Work on place value and addition. Here is a resource that features different types of problems for your second graders to solve. After studying the example at the top of the page, they write the missing number in 12 addition problems....
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Worksheet
Worksheets Plus

Place Value Worksheets - Comparing Numbers

For Students 1st - 2nd Standards
Six problems consisting of sets of tens and ones cubes are arranged for aspiring mathematicians to analyze. For each problem, pupils write down the total numbers of cubes and then use < or > to identify which set is the least and...
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Worksheet
Curated OER

Add Two-Digit Numbers

For Students K - 2nd
In this addition instructional activity, students practice adding 6 2-digit mathematical problems. Students follow 3 steps to adding tens and ones together. Students trace 4 dotted numbers provided in 2 addition problems.
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Worksheet
Curated OER

Numbers Within 20-Place Value

For Students 1st - 2nd
In this place value worksheet, students fill in blanks to tell the correct number of tens and ones. A reference web site for additional activities is given.
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Lesson Plan
Curated OER

Popsicle Place Value

For Teachers K - 1st
Students use popsicle sticks to represent place value. They practice grouping the popsicle sticks in groups of tens and ones to represent numbers given by the teacher.
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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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Lesson Plan
Curated OER

Value that Number

For Teachers 1st - 3rd
Learners complete a variety of activities to gain an understanding of the place values for ones, tens, and hundreds. They should place sets of numbers in order from least to greatest and from greatest to least.
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Worksheet
Curated OER

Expanded Shells

For Students 1st - 3rd
Practice expanded and standard notation in this beach-themed addition activity. You will need to cut out the shell templates, which are in three groups: ones, tens, and hundreds. Learners choose one from each group, then use the...
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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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Worksheet
Curated OER

Regroup - Up to 99

For Students 1st - 3rd
In this regrouping worksheet, students regroup 2-digit numbers into the tens and ones place. There are 12 numbers for students to regroup.

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