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Curated OER
Utah History & Geography
Fourth graders practice large digit addition. Students become familiar with column addition. Students develop knowledge of counties and county seats.
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Simplifying Fractions
In this algebra worksheet, learners simplify fractions using common denominators. They solve using addition and subtraction. There are 6 questions with an answer key.
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Matter
Students complete a unit of activities to learn about states of matter and how to measure matter. In this matter lesson plan, students complete 8 lessons to learn about matter, its states, and how to measure matter.
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Addition Strategies: Compensation
In this math worksheet, students learn the addition strategy of compensation: adding an easy number like 10, 20 or 30 and then subtracting a very small number like 1 or 2. Students solve 12 problems on the page.
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What Do You Think?
In this estimating sums and differences activity, students solve 6 problems in which the answer to a 3 digit addition or subtraction problem is estimated. Students then solve the problem for an exact answer. There will be carrying and...
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Goldfish Subtraction
Students manipulate Goldfish crackers to explore subtraction and number sentences.
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Missing Digit Operations
In this missing digit operations worksheet, learners solve the problems by trying to figure out the missing digit. The 30 problems are a mixture of multiplication, division, subtraction, and addition.
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Missing Digits Operations
In this missing digit operations worksheet, students solve the problems by figuring out the missing digit. The worksheet has 30 problems which are a combination of multiplication, division, subtraction, and addition.
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Math Lesson Plan : Finger Counting
Create a class of mathematics master. They practice addition to ten until they have mastered the skill. They use their hands to add numbers and eventually find the missing addend to make a sum of 10. They also subtract a single digit...
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Math Lesson 12
In these math lessons worksheets, 1st graders practice their math skills of subtraction and addition by completing the 20 pages of equations.
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Chart Trivia
Students practice addition and subtraction problems and answer questions using greater than and less than. They chart information to create a graph on the computer.
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Working Backwards as a Problem-Solving Strategy
In this problem solving strategy worksheet, 3rd graders roll a dice three times and record the number in the hundreds, tens and ones place on the chart, then solve an addition and subtraction problem with that number.
Helping with Math
Subtraction Worksheet: Numbers to 9 (2 of 3)
Second in the series, this activity provides practice with 36 single-digit subtraction problems. The first 24 are in a horizontal arrangement, while the remaining 12 are vertical. First graders especially benefit this type of skills...
Helping with Math
Subtraction Worksheet: Numbers to 9 (1 of 3)
Single-digit subtractions skills are super important in the early grades. The linked resource is the first of three such pages accessible through this website. By checking a box at the top of the page, answers can be revealed. Consider...
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Booster (pg.10)
In this addition and subtraction activity, students work out and answer 2 word problems, answer 2 short answer problems and fill in the missing 4 digits in one addition and one subtraction problem.
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Decimal Clues
In this decimal clues worksheet, 5th graders use the clues to find the decimal for seven word problems using place value, addition and subtraction.
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Estimating Differences (Online Interactive)
In this estimating worksheet, students solve 20 problems in which two or three digit numbers are subtracted after rounding. Students round each number and then give an estimated answer. This is an online interactive worksheet.
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Subtraction Worksheet : Numbers to 19 (1 of 3)
In this subtraction worksheet, students find the differences to 53 horizontal and vertical subtraction problems. They work with numbers up to 19 and do not regroup while working.
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Order of Operations - Add/Subtract
In this order of operations worksheet, middle schoolers complete addition and subtraction problems with parenthesis and 3 and 4 digit numbers. Students complete 9 problems.
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Take Away Bar 2
Learners use an Internet tool, The Take-Away Bar" to solve subtraction problems. They use mental strategies to subtract a two-digit number from a larger two-digit number. Students write and solve subtraction problems. They describe...
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Dinosaur Math
Second graders practice vocabulary related to measurement, mathematics, and dinosaurs. Using the engaging topic of dinosaurs, learners will calculate various information about dinosaurs and use measurement vocabulary. They will also...
Concord Consortium
Calculator Numbers
Know thy calculator. Young mathematicians use their calculators to answer a set of questions. They consider how the number of digits the calculator displays affects the answers to calculations. They then find examples of computations...
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Subtracting Integers (II)
In this subtraction worksheet, students complete subtraction problems containing parenthesis, up to 3 digit numbers, and negatives. Students complete 10 problems total.
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Number Sense
First graders practice rounding 4 digit numbers using place value concepts. In this estimating sums and differences lesson, 1st graders explore clustering, rounding, and front end estimation as methods for rounding decimals.