Lesson Plan
Curated OER

Making a Ten

For Teachers 1st - 3rd Standards
An addition table supports third graders as they learn strategies to improve their math fluency. When finding sums greater than ten, students are taught how to first make a ten and then add on the rest. A similar method is also...
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...
Lesson Plan
EngageNY

Estimating Digits in a Quotient

For Students 6th Standards
Boiling down any division problem to a one-digit divisor problem sure makes estimation easy. The instructional activity shows how to estimate division problems by using place value understanding and basic arithmetic facts to simplify the...
Activity
Math Learning Center

Grade 1 Supplement Set A4 – Number and Operations: Equivalent Names

For Teachers 1st Standards
Engage young mathematicians in developing their basic arithmetic skills with these great hands-on activities. Using Unifix® cubes to model a variety of single digit addition and subtract problems, children build a basic...
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...
Worksheet
Curated OER

And 1 More Makes...

For Students Pre-K - K Standards
If we add one more, how many will we have? Beginners to addition practice this skill using images and counting as they draw one more sock to each set and record the new total. There are three of these followed by four more similar...
Interactive
CK-12 Foundation

Values Written as Powers: Binary Numbers 1 to 8

For Students 6th - 8th Standards
A six-question interactive tasks scholars with adding binary numbers one through eight. A tool acts as a visual aid to showcase the patterns made when working with base—2, digits zero and one. Question types include fill in the blank,...
Worksheet
Mental Arithmetic

Mixed Addition and Subtraction Year 1

For Students 1st - 2nd Standards
Reinforce addition and subtraction with a 30-problem arithmetic worksheet in which scholars add and subtract numbers between one through 10. 
Worksheet
Curated OER

Beginning to Add Decimals Mentally

For Students 1st - 3rd
In this addition worksheet, learners solve ten math problems in which they add a single digit number and a decimal number. Students solve these problems in their head and write the answers in the boxes. The answers are available on the...
PPT
Curated OER

Add 1 digit to 2 digits

For Teachers 1st - 2nd
Walter the frog tells the class to use their number bonds (fact families) to help them add single digit to double-digit numbers. With the guidance of a number line they will count on as Walter hops to the answer.
Lesson Plan
Curated OER

Study Buddies: Adding Two-Digit Numbers

For Teachers 1st - 2nd
Some times a simple lesson is all you need. Here are 2 worksheets that can be used as a lesson on problem solving, addition, and partner work. The first worksheet has learners use a tens and ones charts to practice adding simple...
Worksheet
DK Publishing

Addition with 3-Digit Numbers #1

For Students 2nd - 3rd Standards
Once your mathematicians can add two-digit numbers, it's time to bring on the three-digit addends. Here are 20 practice problems, each involving two whole-number addends. Learners do not need to regroup for any of these, and they have...
Worksheet
Curated OER

Addition Word Problems Up to 20

For Students K - 1st
Because this addition word problem has the answer written on the same page, consider using it as a warm-up and projecting it. Simply cover up the answer until you're ready. The problem has beginners adding up two single-digit numbers for...
Worksheet
Curated OER

Add Three Numbers - Leveled Problem Solving

For Students K - 2nd
There are many ways to add. Learners add 3 single digit number together to find an answer to each of the 6 word problems. A great instructional activity that builds problem solving and basic addition skills.
Worksheet
K5 Learning

Addition and Subtraction Word Problems #1

For Students 3rd - 4th Standards
Third graders read and solve six word problems and decide whether to add or subtract. The numbers range in 2-digit up to 4-digit.
Worksheet
Curated OER

Add or Subtract (up to 50)

For Students 2nd - 3rd Standards
Do you add or subtract? It's up to your mathematicians as they fill in the symbol for 16 equations to make them true. The numbers in this section don't exceed 18. Next, learners answer six word problems by determining the missing addend...
Worksheet
Curated OER

Addition to 20: Practice

For Students 1st - 2nd
A cute pig holds a poster with 15 vertically-oriented addition problems for your little mathematicians to practice sums to 20. They add single-digit and double-digit numbers. Some problems involve regrouping but the worksheet doesn't...
Worksheet
Curated OER

Addition to 20: More Practice

For Students 1st - 2nd
Another page with a cute pig holding a poster with 15 vertically-oriented addition problems provides practice sums to 20. Young number crunchers add single-digit and double-digit numbers. Some problems involve regrouping but the learning...
PPT
Curated OER

Prime Numbers: Eratosthenes' Sieve

For Teachers 4th - 6th
By offering a step-by-step explanation of how to identify prime numbers, this presentation would be a terrific way to give learners a visual example of prime numbers. This is a simple, and easy way, for students to understand the "why"...
Worksheet
Curated OER

Addition Practice #1

For Teachers 2nd - 4th Standards
Show young mathematicians that they are fully capable of mentally adding two-digit numbers. They start by solving 12 two-addend problems (all with two-digit numbers and aligned horizontally). There is no room to show work. Consider...
Worksheet
Curated OER

1 Less or 1 More

For Students 1st - 2nd Standards
Complete these images with values one less and one more; young mathematicians fill in bunches of flowers, starting at a middle number and working their way to the right by addition and to the left by subtraction. For each flower they...
Worksheet
Curated OER

Addition Word Problems #1

For Students 2nd - 3rd Standards
Math is all around us, and scholars observe various addition scenarios as they solve 15 word problems. Each of these involve two-digit addends, some of which are money values. Although there are no decimals or fractions, learners do...
PPT
Curated OER

Who wants to win millions: 4th grade addition

For Teachers 4th
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.
Worksheet
Math Worksheets Land

Add and Subtract Multi-Digit Whole Numbers

For Students 3rd - 5th Standards
Help young mathematicians see the value in addition and subtraction. Offering one addition and one subtraction problem, this worksheet walks students step-by-step through the solutions of each, starting in the ones place and working...