# Third Grade Math Worksheets

Free Printable Worksheets from WorksheetsPlus.comCorrelated to the Common Core State Standards for Mathematics

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### Operations and Algebraic Thinking 3.OA

#### Represent and solve problems involving multiplication and division.

Interpret products of whole numbers, e.g., interpret 5 × 7 as the total
number of objects in 5 groups of 7 objects each

Multiplication Concept

Use multiplication and division within 100 to solve word problems in
situations involving equal groups, arrays, and measurement quantities

Multiplication Applications

Division Word Problems Worksheets

Determine the unknown whole number in a multiplication or division
equation relating three whole numbers. For example, determine the
unknown number that makes the equation true in each of the equations 8
× ? = 48, 5 = ? ÷ 3, 6 × 6 = ?.

Relationship Between Multiplication and Division: Pictures

Relationship Between Multiplication and Division: Triple Puzzles

Multiplication and Division Relationship: Unknown Numbers

#### Understand properties of multiplication and the relationship between multiplication and division.

Apply properties of operations as strategies to multiply and
divide. Examples: If 6 × 4 = 24 is known, then 4 × 6 = 24 is also known.
(Commutative property of multiplication.) 3 × 5 × 2 can be found by 3
× 5 = 15, then 15 × 2 = 30, or by 5 × 2 = 10, then 3 × 10 = 30. (Associative
property of multiplication.) Knowing that 8 × 5 = 40 and 8 × 2 = 16, one
can find 8 × 7 as 8 × (5 + 2) = (8 × 5) + (8 × 2) = 40 + 16 = 56. (Distributive
property.)

Multiplication Properties: Commutative Pictures

Multiplication Properties: Commutative and Associative

Multiplication Properties: Distributive

Recognizing Multiplication Properties

Using the Multiplication Properties

Understand division as an unknown-factor problem. For example, find
32 ÷ 8 by finding the number that makes 32 when multiplied by 8.

Relationship Between Multiplication and Division: Pictures

Relationship Between Multiplication and Division: Triple Puzzles

Multiplication and Division Relationship: Unknown Numbers

#### Multiply and divide within 100.

Fluently multiply and divide within 100, using strategies such as the
relationship between multiplication and division (e.g., knowing that 8 ×
5 = 40, one knows 40 ÷ 5 = 8) or properties of operations. By the end
of Grade 3, know from memory all products of two one-digit numbers.

Multiplication Flash Cards

Division Flash Cards

### Number and Operations—Fractions 3.NF

#### Develop understanding of fractions as numbers.

Understand a fraction 1/b as the quantity formed by 1 part when a
whole is partitioned into b equal parts; understand a fraction a/b as the quantity formed by a parts of size 1/b.

Unit Fractions Worksheet

Fractions: Equal Parts

Numerator and Denominator Worksheet

Explain equivalence of fractions in special cases, and compare
fractions by reasoning about their size.

Equivalent Fractions Worksheet

Money Fractions Worksheets

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