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Mathematics in Grade 3

Grade 3 students learn more about adding, subtracting multiplying, and dividing whole numbers. They learn to find patterns in numbers, such as what number comes next in a series (2, 4, 6, 8, 10, 12, ?).

Students learn how to identify geometric elements, such as the length or shape of sides, corners, or curves. They use these elements to describe, measure, or estimate different objects with models and grids.

Grade 3 students conduct simple experiments to learn often certain events happen — for example, how often a coin come up heads? They use these data to predict whether or not the next coin will come up heads.

TOPICS COVERED

Mathematics standards for prekindergarten through grade 8 are presented in the following five strands. Expectations for what a child should be able to do increase from one grade the next.

• Understanding numbers and how they work, such as adding, subtracting, multiplying, and dividing (Number Sense and Operations)

• Investigating patterns and using symbols (such as x + y = z) to analyze mathematical situations and change (Patterns, Relations, and Algebra)

• Identifying shapes, sizes, and relationships (Geometry)

• Using number relationships to find out size and volume (Measurement)

• Doing experiments, collecting data, and using the information to decide what will happen (Data Analysis, Statistics, and Probability)

WHAT YOUR CHILD SHOULD KNOW

BY THE END OF GRADE 3, YOUR CHILD SHOULD KNOW AND BE ABLE TO PERFORM THESE SKILLS:

1. Represent, compare, and order numbers up to 10,000 using various forms, including expanded notation (for example, 3,206 = 3 x 1,000 + 2 x 100 + 6) and written out in words (three thousand two hundred six).

2. Add and subtract up to four-digit numbers accurately and efficiently (3,201 – 2,100 = ?).

3. Solve problems involving the addition and subtraction of money amounts in decimal notation ($140.05 + $22.50 = ?).

4. Know the meanings of 0.75, 0.50, and 0.25 as they relate to money. Know that fractions and decimals are two ways to represent the same concept (for instance, 50 cents is 1/2 of one dollar).

5. Know multiplication facts through 10 x 10 and related division facts (for example, 9 x 8 = 72 and 72 ÷ 9 = 8). Use these facts to solve related problems (9 x 8 = 72, so 9 x 80 = 720).

6. Create, describe, extend, and explain symbolic (geometric) patterns and addition and subtraction patterns. Describe the patterns in a variety of ways.

7. Understand and correctly use operational symbols such as +, –, x, and =. Fill in the blanks of an equation with the symbol that makes the equation true. For example, if 4 _ 3 = 12, what operational symbol goes in the blank?

8. Identify and draw lines that are parallel , perpendicular , and intersecting .

HOME ACTIVITIES

1. Go shopping for groceries together. Ask your child to add the cost of different items or multiply to get the cost of a bag of 20 oranges. Use the correct operational symbols.

2. Help your child use scissors to cut shapes out of cardboard. Ask your child to put the shapes together to form common objects, like a house or a truck.

3. Cook a meal together. Use recipes that call for fractions: 1/4 of a cup, 1/2 of a teaspoon.

4. Measure a small room or closet. Add the length of the sides to find the perimeter.

5. Assess Your Child's Math Skills

Math Grade 3 Course Outline

Third Grade Math Worksheets

Third grade worksheets page 2 - Third grade math worksheets

3rd grade Multiplication Drills to 12 - 100 problems per page.
Includes horrizontal and vertical formats.
3rd grade Multiplication practice:0-5 - 100 problems, timed drill
3rd gradee Multiplication practice:0-7 - 100 problems, timed drill