Assessment
Los Angeles County Office of Education

Assessment for the California Mathematics Standards Grade 1

For Students 1st Standards
Here is an assessment designed to test mathematicians' knowledge of writing numbers, comparing numbers, skip counting, solving addition and subtraction problems; along with measuring objects, telling time, identifying shapes, reading...
Worksheet
Curated OER

Decide When to Regroup homework 10.4

For Students 2nd - 3rd
For this regrouping worksheet, students use paper clips to show tens and ones, determine whether there is a need to regroup, and find the sum. Students solve five problems.
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...
Worksheet
Curated OER

What's Missing?

For Students K - 2nd
Add a challenge for your young mathematicians' adventures in double-digit addition. Instead of simply computing sums in the 9 problems, they work backwards to fill in blanks among the addends. Resource makes a terrific extension or...
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.
Lesson Plan
Curated OER

Investigation - Who is Right?

For Teachers 3rd
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.
Worksheet
Curated OER

Add Two-Digit Numbers

For Students K - 2nd
For this addition worksheet, 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.
Worksheet
Curated OER

Adding With Whole Tens

For Students 2nd - 3rd
In this addition activity, students use pictures of bars and numeric problems to add whole tens and complete addition problems. A website reference is given for additional activities. 
Lesson Plan
Curated OER

Primary Understanding and Use of Place Value

For Teachers 3rd - 4th
Explore place value and regrouping with your class. They develop awareness of several ancient number systems and how they differ from the base ten system commonly used today. They play "Chip Trading" with partners to practice addition...
Lesson Plan
Curated OER

Developing Strategies for Addition and Subtraction

For Teachers 2nd - 4th
Primary graders develop strategies to assist them with addition and subtraction. They discover number combinations and numerical facts which enable them to add and subtract more effectively. Students use these techniques to complete...
Worksheet
Curated OER

Same and Different

For Students 1st - 2nd
For this mathematics worksheet, students 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 writing a...
Worksheet
Curated OER

Addition and Subtraction Up to Two-Digits

For Students 2nd - 3rd
In this finding the sums and differences worksheet, students write the equations in the ones and tens columns and solve and also solve vertical problems with and without regrouping. Students solve 18 problems.
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.
Worksheet
Curated OER

Adding With Regrouping

For Students 2nd
In this regrouping addition worksheet, 2nd graders add 4 problems together, use tens and ones models, if needed, and circle yes or no if they had to regroup or not.
Worksheet
Curated OER

Adding Two-Digit Numbers

For Students 2nd
In this addition worksheet, 2nd graders add 6 two-digit numbers together, use tens and ones as models and circle yes or no if they needed to regroup.
Lesson Plan
Curated OER

Place Value 1-- Breaking Down Numbers

For Teachers 2nd - 3rd
In this math worksheet, students practice standard and expanded notation by solving 33 problems. Students break numbers down to tens and ones and write as addition, then reverse the process to write the standard form.
Worksheet
Math Worksheets Land

Add and Subtract within 1000 - Step-by-Step Lesson

For Students 2nd - 4th Standards
Three-digit numbers are the name of the game here! Scholars convert 456 to expanded form, then complete one addition and one subtraction problem. The equations are written vertically, and the addends produce a four-digit number. There is...
Lesson Plan
Armory Center for the Arts

Place Value Collage

For Teachers 3rd Standards
How can art represent math? Use a lesson on place value collages to illustrate the different meanings that numbers have in their designated places. Kids observe photographs and paintings that show place value, then work on their own.
Lesson Plan
West Contra Costa Unified School District

The Power of Ten: Building a Magnitude Model

For Teachers 4th - 5th Standards
Add visual representation to teaching place value with a magnitude model. Using adding machine tape, pupils build a linear place value strip from 1 to 100.
Worksheet
Curated OER

Deciding When to Regroup

For Students 2nd
In this addition worksheet, 2nd graders determine if they need to regroup or not in 3 word problems. Students circle their answers, yes or no, and write the tens and ones numbers in the blanks provided.
Worksheet
Curated OER

Calculator Activity: Ones, Tens, Hundreds

For Students 3rd - 4th
In this calculator activity worksheet, students learn to use a calculator to add numbers. Students add the numbers in column A to column B and then look for the answer that matches in column C. One answer is missing and students must...
Worksheet
Math Worksheets Land

Add up to Four Two-Digit Numbers - Step-by-Step Lessons

For Students 1st - 2nd Standards
Okay, so your scholars are excelling at two-addend addition problems, but what about three or four? Here are some practice problems to stretch their math skills. They find the sums of six equations: two with two addends, two with three...
Worksheet
Curated OER

Add and Subtract within 1000

For Students 1st - 2nd
Here are some practice problems with adding and subtracting three-digit numbers. Scholars complete three addition problems and three subtraction problems. None of these involve carrying over or regrouping. There are only two numbers to...
Lesson Plan
Curated OER

Comparing and Ordering Fractions, Mixed Numbers, and Decimals

For Teachers 4th - 5th
Students practice comparing and ordering fractions, mixed numbers, and decimals. For this fractions, mixed numbers, and decimals lesson, students examine a decimal place value chart compared to a whole number place value chart. They...

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