Lesson Plan
Curated OER

The Meaning of Whole Numbers

For Teachers 4th - 8th
For this whole numbers worksheet, students fill in different charts asking about the place value of various whole numbers. Students complete 8 problems.
Worksheet
Curated OER

Add Two-Digit Numbers

For Students K - 2nd
In this addition worksheet, students practice adding 9 two-digit addition math problems involving tens, ones and regrouping. Students solve the answer to 1 test prep question and fill in the circle for the correct answer from a multiple...
Worksheet
Curated OER

Subtracting 2-Digit Numbers Mentally

For Students 3rd - 6th
In this subtraction worksheet, learners subtract 2 digit numbers from each other using mental math. Students complete 12 problems and 9 comparison problems.
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. Kids 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 fill in...
Lesson Plan
Curated OER

Three-Digit Addition

For Teachers 3rd - 4th
Students work with hundreds place value, create and manipulate three-digit addition problems, and add three-digit numbers.
Worksheet
Curated OER

Addition

For Students 1st - 2nd
Looking for addition drills for your scholars to practice adding one and two-digit numbers? You've found it! Mathematicians examine an example before finding the sum of 16 equations, each of which involves one 2-digit addend and one...
Lesson Plan
Curated OER

Easy Addition

For Teachers 4th - 8th
Learnes practice an alternate way of carrying when doing addition. In this addition lesson plan, everyone applies an alternate algorithm when they need to carry when adding. They work from left to right instead of starting in the ones...
Lesson Plan
Curated OER

Exercises: Counting by 10s

For Teachers 1st - 2nd Standards
You've found six problems sure to help your class understand adding tens and hundreds. First they fill in a chart by adding 10s, then they make 100 in different ways. They then use a hundred chart to complete three different patterns,...
Printables
Math Learning Center

Addition Strategies

For Teachers 2nd - 3rd Standards
Help young mathematicians refer to simple addition strategies with a set of math posters. The pages feature ways to remember how to add zero to a number, how to determine if a number is odd or even, and making fast tens.
App
Innovative Mobile Apps

Action Words

For Students Pre-K - 8th
From asking to yelling, this app teaches action verbs through images. Users listen to each word and tap the picture that corresponds with that verb. Just touch the screen to get started!
Worksheet
Curated OER

Count on Whole Tens

For Students 3rd - 4th
In this counting worksheet, students complete a set of 5 problems, adding a "whole ten" number to a 3-digit number, then complete 6 additional problems, adding 90 to given numbers.
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...
PPT
Curated OER

Multiplication Grids: Double-Digit

For Teachers 3rd - 4th
Kids learn how to use the grid method to solve double by single-digit multiplication problems. They take each double-digit number into its tens and units, place it on the grid, add the multiplier, then solve the problem. There are two...
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

Two-Digit Addition With Regrouping

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

The Numbers Get Larger

For Teachers 2nd
Second graders examine how to use mental strategies for addition and subtraction. They look at part/whole strategies for multi-digit problems and define which one would be best used for a particular problem. They use tens frames to solve...
Worksheet
Curated OER

Add Groups of Ten

For Students 2nd - 3rd
In this addition worksheet, students add groups of tens and their remainders to determine the missing addends in the pairs of 2-digit problems and then find the sums. Students solve nine problems.
Worksheet
Math Salamanders Ltd.

Addition - Adding on Tens Sheet 1

For Students 2nd - 4th Standards
In this adding on tens activity, students add multiples of 10 to given numbers. A reference website is given for additional activities.
Worksheet
Curated OER

Addition: 3-Digit Sums (Carrying Tens)

For Students 2nd - 4th
In this addition practice instructional activity, students improve their math skills as they solve 30 problems that require them to add 2-digit numbers to 2-digit numbers
Worksheet
Curated OER

Number Puzzles

For Students 1st - 2nd Standards
These math puzzles are sure to get your first and second graders thinking. Nine word problems about odds and evens, as well as greater than and less than, keep learners guessing. If you're working on mental math in your class, use these...
Worksheet
Curated OER

Standard written method for addition of two 3-digit numbers (1)

For Students 3rd - 5th
In this addition worksheet, learners learn how to add two 3-digit numbers. They then solve the 12 addition problems on the worksheet. The answers are on the last page.
Worksheet
Curated OER

Adding With Whole Tens

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

Carrying to Tens

For Students 1st - 3rd
in this addition worksheet, students read about carrying tens, then complete 13 problems, circling cubes as directed and solving. A website reference is given for additional activities. 
Worksheet
Curated OER

Deciding When to Regroup

For Students 2nd
For 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.

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