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Curated OER
Multiplication Problems
In this multiplying one-digit times three-digit numbers worksheet, students find the products with some regrouping. Students solve 12 problems.
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Missing Sums and Addends
In this recognizing two-digit addition facts worksheet, students use a number line and addition facts to find the missing sums or addends in problems with and without regrouping. Students solve 20 problems.
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Match up
In this subtraction instructional activity, students solve 3 digit subtraction problems and then match them up with their related addition equations. Students complete and match 6 problems and answer 1 question.
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Codebreaker Math
Young scholars solve addition and subtraction problems and decipher and write messages using a code. They read and discuss an informational fact sheet about the Navajo code talkers from World War II, and decode and re-code messages...
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Divide Hundreds
In this finding the quotients activity, students divide three-digit numbers by two-digits and three-digits. Students solve 21 vertically written problems.
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Mystery Math
Here is an interesting "trick" your young mathematicians can perform. They are taught how to find any number's "digital root," by following a set of detailed instructions. The process works for any number, and is the type of math puzzle...
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Add and Subtract within 20 - Guided Lesson Explanation
Provide second graders with an explanation for how to find the total value of numbers written in a series of boxes.. The resource provides answers and explanations for problems on a referenced worksheet that is not included.
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Addition and Subtraction, Multiplication and Division Review
Students must use their mathematical reasoning skills in order to make four math statements true by filling in the boxes with the correct digits. Addition, subtraction, multiplication, and division problems appear.
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Year 6 Booster pg 4
Students must use their mathematical reasoning skills in order to make four math statements true by filling in the boxes with the correct digits. Addition, subtraction, multiplication, and algebra problems are solved.
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Addition Relay
Third graders, in pairs, use a bag of counters which can be dried beans, squares of papers, etc.
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Dinosaur Math
In this math worksheet students add four digit numbers with and without regrouping. Worksheet pictures a variety of dinosaurs and other extinct animals.
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Mineral Matters
Students work in a team to use the ProScope Digital USB Microscope and a computer to collect microscopic images from a variety of mineral specimens. They compare specimens and determine how they are alike and different by comparing their...
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Mental Math: Adding 10s
To develop mental math skills for adding 10s, learners read an example, solve one carefully scaffolded problem, and then complete 6 more independently. Pictures of 10-rods make the connection between sets of 10 and the corresponding...
Los Angeles County Office of Education
California State Standards: Algebra I
Starting a year of Algebra I? This mighty packet practices all of the major topics with different ranges of difficulty. Standards include everything from linear to quadratic to rational expressions. Use it in a...
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Base-Ten Rounding
Fifth graders explore the base-ten rounding method. Using base-ten blocks, 5th graders build two-, three-, and four-digit numbers. After discussion, they round numbers to the nearest 10. Using the computer, students participate in a...
Illustrative Mathematics
How Many Colored Pencils?
Support young mathematicians' interpretation of place value in order to multiply single-digit numbers by 10. The task builds upon and enhances a learners' understanding of place value, a second grade skill, while introducing...
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Estimate Sums
In this estimating sums worksheet, students solve 6 word problems where they estimate the sum of 3 digit numbers by rounding to the nearest 10, 100 or 1000.
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Who Wants to Win Millions: Subtraction
Review subtraction skills with this entertaining game. Learners answer a series of subtraction problems involving two and three digit numbers. This resource could be used a a quick class review or as a center activity.
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Mental Arithmetic - Adding to Thousands
In this addition instructional activity, students solve the 15 addition problems using mental math. The last 3 problems ask that students write down the method they used to solve the problem. In these problems, a 4-digit number is added...
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Fun Math 45
In this finding the sums worksheet, students add two-digits and three-digit numbers on a page with fun clip art next to each problem. Students solve 15 problems one.
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Booster (pg.10)
In this addition and subtraction worksheet, 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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Multiplication and Division Drills
In this multiplication learning exercise, students complete multiplication problems including numbers up to 3 digits. Students complete 16 problems total.
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Area and Perimeter of Rectangles
In this area and perimeter worksheet, learners find the area and perimeter of rectangles whose sides are three digit numbers with decimals. Students complete 6 problems.
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Find the right number sentence
In this addition worksheet, students find the correct number sentence to go with the word problem. Students have 3 number sentences with 1 digit numbers to choose from.