Curated OER
Two-Digit Addition
In this two-digit addition instructional activity, 2nd graders solve 15 addition problems. The problems include both one and two-digit addends.
Curated OER
Adding three single-digit numbers
In this addition learning exercise, 2nd graders complete eighty addition problems. Each problem is made of three addends. All of the addends are numbers 0-9.
Curated OER
Addition Exercises
In this addition learning exercise, 1st graders add the three addend problems together and write the answer in the provided space. Students solve nine addition problems.
Curated OER
Same and Different
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...
Curated OER
Horizontal Three Digit Place Value Addition
In this addition practice worksheet, students solve 16 problems that require them to add using 3 addends. The addends include a 3-digit number, 2-digit number, and 1-digit number.
Curated OER
Add and Subtract within 1000
The visual nature of this worksheet makes it ideal to project for an all-class warm up. Learners first complete two horizontal addition problems involving three-digit addends. Consider whether or not you will encourage them to rewrite...
Math Salamanders Ltd.
Division to 10 x 10 Sheet 3
Learners fill in the missing addends to the one and two-digit number division problems. They complete 40 problems. A classic worksheet!
Curated OER
Odd or Even
Children are told that an odd number is one that does not have a partner and an even number is one that has a partner. It's not the way I would explain it, but no matter, the activity and worksheet are still good. Children analyze...
Curated OER
Missing Addends
In this missing addends worksheet, students fill in one missing addend in a problem to arrive at the sum of 20, 5 problems total. An answer key is included.
Curated OER
Addition: How Many Ways?
In this addition instructional activity, 2nd graders study the various ways to add with different addends. Students are provided with 4 digits in which to write as many possible addition problems as can be made.
Curated OER
Mystery Boxes
In this math learning exercise, students solve the problems that use the operation of addition. They fill in the missing addends or sums as needed.
Curated OER
The Rabbit Problem
Students notice a number pattern in the book The Rabbit Problem by Emily Gravett. In this number pattern lesson, students represent and describe numbers appropriate to their grade level.
Curated OER
Addition Properties
Student study addition properties. In this addition properties lesson plan, young scholars use multiple methods to solve various types of problems. Students illustrate and describe in various ways the Commutative Property of...
Curated OER
Math Worksheets Addition Worksheet: Adding 2-Digit Addends
In this addition instructional activity, students illustrate their understanding of the concept by responding to 20 problems adding 2-digit numbers and providing the correct computation.
Curated OER
Christmas Math Addition
In this Christmas theme addition worksheet, students add single-digit numbers to five, write the addends, and find the sum. Students write and solve addition sentences.
Curated OER
The Number Toolbox-Vocabulary Test
In this numbers vocabulary worksheet, students complete a 10 question matching quiz, matching math terms with their definitions. Answers included on page 2.
Curated OER
The Number Toolbox-Vocabulary Test
For this numbers vocabulary worksheet, students complete a 10 question test, matching "number" vocabulary terms with their correct definition. Answers are provided on page 2.
Curated OER
Addition - What Are the Missing Numbers?
For this addition worksheet, students determine what the missing numbers are in 8 two digit addition problems; either finding the sum or an addend. They estimate and calculate each answer in 4 three and four digit addition problems.
Curated OER
Subtracting Within the Same Ten
In this subtraction instructional activity, students subtract one digit numbers from one and two digit numbers with the same 10. Students complete 8 sets of problems.
Curated OER
Missing Number Addition
In this missing number activity, students fill in missing addends to complete 5 simple problems. An answer key is included on page 2.
Curated OER
Missing Number Sum Activity
In this missing number worksheet, students fill in missing addends to reach the sum of 19, 8 problems total, then answer additional related questions.
Curated OER
Completing The Next Hundred
In this math learning exercise, learners solve the problems using the tens symbols. They take the number given and fill in the addend to create the next hundred number.
Curated OER
Rounding to Add #2
In this addition worksheet, students round addends to the nearest 10 to estimate sums. A website reference for additional resources is given. One example is completed for students.
Houghton Mifflin Harcourt
Unit 1 Math Vocabulary Cards (Grade 1)
Reinforce mathematical vocabulary with the use of flash cards. Each card showcases a boldly typed word as well as a labeled picture representation of the word. Terms include addition, subtraction, greater than, less than, and more!