Curated OER
Pairs That Make Ten
A very basic presentation on numbers that add up to ten. Learners are shown a number on a slide, and they must come up with the addend that will make a sum of 10 when they are added together. Not the greatest presentation in the world,...
Virginia Department of Education
Angles in Polygons
Polygons — it's all about the angles. Groups work with dynamic geometry software to find the sum of the measures of the angles of various polygons. After finding the information for several polygons, the groups generate a formula that...
Key Stage Fun
Squeebles Addition & Subtraction
The math monster is at it again, this time stealing all the cars and drivers that were to take part in the cart race. If their addition and subtraction facts are up to the challenge, young mathematicians can win the drivers' freedom and...
Houghton Mifflin Harcourt
Addition and Subtraction Facts to 20
First graders act out number stories from number cards. In order to learn about addition and subtraction up to 20 instructional activity, learners become the manipulatives and line up to show the number stories.
West Contra Costa Unified School District
Connecting Fractions and Rational Expressions
Teach class members to work with rational expressions using their knowledge of fractions. The lesson plan starts with a warm-up of rational expressions at four different levels of complexity. The different levels continue throughout the...
Curated OER
Magic Math Morning Work
In this fact families worksheet, students solve 10 problems in which single digits are added with sums to ten. Students then check each problem using subtraction.
Curated OER
Unknown Numbers in Sums and Differences - Step-by-Step Lesson
First grade mathematicians will love to monkey around with an illustrated word problem involving missing bananas. They must decide how many bananas the monkey ate by counting the remaining bananas and by counting the number Lee had and...
Curated OER
Common Core State Standards 1st Grade Math
Here are the complete set of the math practice standards and the Common Core standards for first grade. They cover operations & algebraic thinking, operations in base 10, measurement and data, and geometry. Illustrated nicely with...
Curated OER
Crabby Math
Here are 4 different (yet related) worksheets and an answer key for each. The class will work through each sheet, adding single-digit number to find sums. They then color in the sums that meet each worksheets instructions. For example:...
Curated OER
Addition
Each of these addition equations involves two addends that are multiples of 10. Although there isn't any regrouping necessary, some of the sums are three-digit. The first 16 of these 28 equations are vertically oriented and the second 12...
Curated OER
Facts of Five
This is a great math station partner game! Using the provided ten-frame cards, learners practice creating addition problems with a sum of 5. Each card has a number between 0 and 5, and pairs shuffle and lay out five of them. They take...
Concord Consortium
Integer Solutions
Experiment with integer relationships. Young scholars consider integers that have a sum of 10. They begin with two integers, then three, four, and more. As they consider each situation, they discover patterns in the possible solutions.
Curated OER
You Know the Answer: Math Riddle
Although the riddle is an outdated political reference, this math challenge is a good practice in operations and domain-specific vocabulary. Learners complete 18 problems, using multiplication, division, subtraction, and addition. Some...
Curated OER
Mentally Add and Subtract 10 or 100
Don't let the title of this one fool you; scholars skip count only by 10 in this number sequence instructional activity. They fill in missing numbers on a number line to complete each sequence, adding or subtracting 10. There are two...
Curated OER
Math Square Puzzle
In this addition puzzle worksheet, students fill in 10 blank spaces on a math puzzle grid. Students make each row and column add up to be the sum at the end of each line of the puzzle.
Curated OER
Easter Eggs in a Basket - Sums to 50 (C)
In this addition worksheet, students solve the addition equations with sums to 50. Students then color the Easter eggs in the basket that match the equation with sums greater than 27. Students solve 20 problems.
Curated OER
Easter Eggs in a Basket - Sums to 18 (B)
In this single digit addition review worksheet, students use their math skills to solve 20 problems that require them to add 1 digit numbers.
Curated OER
Easter Eggs in a Basket - Sums to 50 (B)
In this Easter addition review worksheet, students use their math skills to solve 20 problems that require them to add 1 and 2 digit numbers.
Curated OER
Easter Eggs in a Basket - Sums to 50 (A)
In this Easter addition review worksheet, students use their math skills to solve 20 problems that require them to add 1 and 2 digit numbers that have sums up to 50.
Curated OER
Dinosaur Math
Students read How to Train with a T.Rex and Win 8 Gold Medals and solve math problems. In this dinosaur math lesson, students write a math story to go with the dinosaur story. Students discuss the needed strategies. Students complete a...
Curated OER
Using Addends and Sum/Using Subtrahend, Minuend, and Difference
What is an addend? What is a sum? Review this math terminology on the top half of the worksheet before practicing basic addition.
Curated OER
Estimating Sums and Differences
Work on rounding, estimating, adding, and subtracting with a helpful math worksheet! Fifth graders study different sets of addition and subtraction problems, and after rounding each number to the leading digit, they estimate what the sum...
Curated OER
Find the Sums (Under 100)
All of these sums are under 100: learners practice with three types of addition problems, each with two equations. First, they add a double-digit and single-digit number. Then, scholars add two double-digit numbers, one being a multiple...
Curated OER
Fun Math
In this finding the sums worksheet, students add one-digit and ten on a page with fun clip art next tot each problem. Students solve 15 problems.