Curated OER
Adding and Subtracting
Adding and subtracting 100 is a breeze once scholars understand the role place value plays in this math process. They examine four examples before adding 100 to 24 numbers and subtracting 100 from 24 more. If you haven't yet covered...
Illustrative Mathematics
One, Ten, and One Hundred More and Less
What's 1 more or less than a number? What's 10 more or 10 less than a given number? What's 100 more or 100 less than a number? These are the types of problems learners must answer in a six-question worksheet.
Curated OER
Adding Tens
Second graders explore and discuss adding 10 as they predict number patterns with the hundred chart. They work in pairs, groups choose a number, 1-9, and predict what happens if they add 10 to the number. Students make-a-ten strategy...
Curated OER
Adding Humor to Your Lessons is No Laughing Matter
Try these seven ways to inject laughs into your curriculum, while staying on track academically.
Curated OER
Who Wants to Win Millions?
Addition practice awaits your students in this engaging Jeopardy-style game. The students can earn hundreds of dollars by answering questions correctly. The categories include: Adding Doubles, Add and Find Missing Numbers, Adding 3...
Scholastic
Study Jams! Expanded Notation
Teaching expanded notation is a great way to enhance young mathematicians' understanding of place value. This presentation explicitly describes the process, starting with the largest place value and working down, from left to right,...
Curated OER
Mentally Add and Subtract 10 or 100
Find the missing digits in these number sequences. Each of the ten has one missing number and scholars must figure out what it is. Here's the pattern: all of these sequences involve counting by 10s. Learners add or subtract 10 to...
DK Publishing
Adding Fractions
Fractions can be tricky, so be sure any independent practice worksheets you assign guide scholars through steps like this one. There are two examples showing mathematicians how to add fractions and reduce the answer to simplest terms....
Illustrative Mathematics
Number of the Day
Daily routines not only help to manage classrooms, they can also provide learners with rich opportunities for learning. This activity supports young learners in developing their number sense by counting up the school days on a class 100...
Curated OER
Board Game: Race to 100
Who can get to 100 first?! It may be in the hands of chance, but either way kids will have to practice counting and adding along the way. Partners take turns rolling two dice and moving their game pieces that many spaces until one pupils...
Primary Junction
Adding Tens
Build on your learners' confidence in quick addition as they discover strategies to add tens to two-digit numbers. After reviewing counting by 10's, they discuss tactics to add multiples of 10 to other numbers. They visualize how to...
Scholastic
Adding and Subtracting Ten
Developing fluency with basic addition and subtraction is fundamental to the success of all young mathematicians. This four-day lesson series begins with learners using ten-frames and hundreds charts to recognize patterns when adding and...
Fuel the Brain
Brain Boosters - Add Ten on a Number Line
Encourage learners to use pictures, numbers, or words to solve two-word problems in which they count by 10's using a number line. They tell the total number of items the child has in each problem by starting at a given number and adding...
National Security Agency
Integers: Quick, Fun and Easy To Learn
A good complement to any integers unit contains a three-day lesson plan about positive and negative integers, adding and subtracting integers, and how to find the additive inverse. Additionally, it provides all necessary worksheets and...
Curated OER
Use a Number Line to Add
Your first and second math class will develop a higher understanding of addition after using the number line. Word problems are provided, and learners use the number line to illustrate and solve each problem. For advanced learners,...
Curated OER
Tens and Units
Images of base ten blocks are used to reinforce counting past 10. Learners will count along, adding units to each 10 as they go from 10 to 30. Each number is shown on a 100 block, as blocks of 10s and 1s, and in numeric form as tens and...
Curated OER
Addition and Subtraction up to 100
After reviewing double-digit addition and subtraction up to and from 100, learners are introduced to addition and subtraction up to and from 10,000. A grid is used along side number decomposition to help them solve a word problem...
Curated OER
Who wants to win millions: 4th grade addition
Adding large numbers takes practice, so it might as well be fun practice! This Jeopardy-style game asks fourth graders to add up to hundreds, thousands, and millions. A Perfect way to study for up-coming standardized tests.
Illustrative Mathematics
Adding Tenths and Hundredths
Learning to add fractions with different denominators presents a big hurdle for many young mathematicians. Simplify the process for learners with this series of practice problems involving the friendly fractions tenths and hundredths....
Curated OER
Found Poem: Number the Stars
It's easy to write a found poem! First, select a passage about 50-100 words in length. Then, select only the strong, visual language. Now you're ready to write your found poem: simply string the words together adding (at most) two of...
Kiz Math
Who Wants to Win Millions - Addition
Some excellent practice in adding a variety of numbers awaits your class in this engaging Jeopardy-style game. They can earn hundreds of dollars by answering questions correctly. The categories include: Adding One, Two, and Three-digit...
Curated OER
Adding and Subtracting Whole Hundreds
Kids count by 100 to determine a number in the thousands. They fill in the missing number by counting on 100 starting at the number 5000. They then add 100 to numbers like 2800 and 2600. There are 12 problems to solve.
Curated OER
Solve Story Problems: Sold! A Mathematics Adventure
Young mathematicians listen to the book Sold!: A Mathematics Adventure by Nathan Zimelman where they encounter ways to solve story problems. They then create and solve start unknown addition and subtraction equations. Resource builds in...
West Contra Costa Unified School District
The Power of Ten: Building a Magnitude Model
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.