Los Angeles County Office of Education
Assessment for the California Mathematics Standards Grade 3
Assess scholars' knowledge with a 22-page assessment that covers place value, patterns, probability, estimation, measurement, geometric figures; and their ability to add, subtract, multiply and divide proficiently.
Teacher's Guide
Addition Odd or Even Valentine's Day
Get in the Valentine's Day spirit with an addition learning exercise. Scholars solve problems and color answers different colors depending on whether they are even or odd.
CK-12 Foundation
Subtraction of Fractions: Fragmented Fractions
An interactive challenges scholars to subtract mixed numbers. Pupils answer questions—multiple-choice, fill in the blank, and true or false—with help from virtual fraction strips. The practice closes with a discussion.
Kiz Club
Candy Jar Counting
How many candies are in the jar? Included here is an image of a jar to which you can add paper candies. Learners can practice estimating and adding skills.
Curated OER
Spring Addition Sums 0-5
Practice addition by counting animals associated with Spring to add sums up to five. One of the four equations requires students to create their own problem to solve.
Curated OER
Fun Math Worksheet 45
In this finding the sums worksheet, students observe fun clip art and add five-digits plus five-digits numbers with regroupings. Students solve 15 problems.
Curated OER
Fun Math Worksheet 43
In this finding the sums learning exercise, students observe fun clip art and add five-digits plus five-digits numbers with regroupings. Students solve 15 problems.
Curated OER
Adding Fractions
All of these fraction pairs have common denominators, so adding them up is a bit simpler. There are two examples demonstrating both a mixed number and reducing to simplest terms. Scholars add up 28 fraction pairs, simplifying when...
CK-12 Foundation
Multiplying Matrices by a Scalar
The rule is add before multiplying, even with matrices. Pupils use a slider to change the scalar multiplying the sum of two matrices. The interactive displays the resulting solution matrix, and requires scholars answer five questions...
CK-12 Foundation
Vector Multiplied by a Scalar: Boat Race
Find the right number of vectors to get to the finish line. Using a boat race scenario, pupils add multiples of the same vector together. The scholars use scalar multiplication to speed up the boats in an exciting race to the finish.
Curated OER
Fractions
Give mathematicians 39 chances to practice adding fractions, most of which involve mixed numbers. There are three examples to get them started, and scholars should be encouraged to reduce answers when necessary. Not for beginners, these...
CK-12 Foundation
Fraction and Mixed Number Comparison: Pumpkin Pie
Compare fraction models to fractions on a number line in an interactive that uses pumpkin pies as the model. Pupils look at pumpkin pie models to determine their improper fraction value. They use their knowledge to answer five questions...
CK-12 Foundation
Simplification of Radical Expressions: Irrational Garden Plot
All is not simple in the garden of rationals and irrationals. Learners use a context of a garden to practice simplifying irrational numbers involving radicals. They also find areas of garden with irrational side lengths.
Math Doctor
Chapter 5: Decimal Notation
Explore all things decimal in this thorough series of introduction activities. Including scripting for the teacher and detailed descriptions and examples, the plan begins by reviewing the basics of place value and writing fractions as...
Curated OER
Addition with Regrouping
Now that your class can add, introduce them to adding with regrouping. This presentation provides several models that demonstrate what happens when you regroup. There are several examples and a few practice problems to complete as a class.
Curated OER
Making 10
Brilliant! This presentation helps kids discover all the different way they can make 10. Each slide contains 10 balls, as the kids count, each ball blinks, and the number appears under them to show how many. A plus sign pops up and the...
Curated OER
Making 10 with animals
Count the animals in each group and add to make the number 10. This slide show provides learners with the opportunity to see how many different way they can count on to make 10. Cute animals and large exciting number make this a great...
Curated OER
Adding Small Numbers
In this adding small numbers instructional activity, students use objects to add numbers and choose the correct answer. In this multiple choice instructional activity, students choose the correct sum.
Curated OER
Two Digit Addition with Regrouping
Young scholars explore the concept of "regrouping." In this 2-digit addition with regrouping instructional activity, students create visual representations of combinations that equal ten using a tens frame. Young scholars use...
Curated OER
Add and Compare enrichment 10.5
For this addition worksheet, students add the ones columns and fill in the carry squares, add the tens, then order the sums. Students solve ten problems.
Curated OER
It All Adds Up---Puzzle #5
In this challenging addition worksheet, students find the missing numbers in a puzzle so that every column and row adds up to the totals at the end of each row and column.
Curated OER
It All Adds Up---Puzzle #4
In this problem solving addition worksheet, students practice finding the missing numbers in a crossword puzzle so every column and row add up to the number found at the end of each column and row.
Curated OER
Arithmetic with Positive and Negative Numbers
In this arithmetic with positive and negative numbers worksheet, students 5 multi-step problems. Students find the sum of positive and negative integers. Students practive multiplying and dividing positive and negative integers.
Curated OER
Santa's List Sums (C4)
In this addition worksheet, learners add up the sums of the boys and girls in each column to come up with a total. Students add up 17 problems of adding four digit numbers to come up with a sum.
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