Common Core State Standards

# CCSS.MATH.CONTENT.4.OA.A.3

Solve multistep word problems posed with whole numbers and having whole-number answers using the four operations, including problems in which remainders must be interpreted. Represent these problems using equations with a letter standing for the unknown quantity. Assess the reasonableness of answers using mental computation and estimation strategies including rounding.

9 teaching resources for those 'aha' moments

### Subtraction Strategies Posters

A set of 7 math subtraction strategies posters.

8 pages Grades: 2 - 5

### Strip Diagram (Bar Model) Poster Pack

Strip Diagrams (also known as Bar Models) is a problem solving strategy that can be applied to all operations.

20 pages Grades: 2 - 6

### Roll to Create a Strip Diagram

A roll to create template for students to use when learning to use strip diagrams.

1 page Grades: 3 - 6

### Operations of Four Math Machine Worksheet

A worksheet to use when practicing addition, subtraction, multiplication, and division.

3 pages Grades: 3 - 5

### Mathematics Vocabulary Posters

A teaching resource to help students identify the associated vocabulary for mathematical operations.

5 pages Grades: 2 - 4

### Math Problem Solving Brainteasers – Grades 3-5

A set of 10 fun problem solving brainteasers for your students.

6 pages Grades: 3 - 5

### Mental Math Division Posters

5 posters outlining mental math strategies for division.

5 pages Grades: 3 - 6

### Mental Math Multiplication Posters

10 posters outlining mental math strategies for multiplication.

10 pages Grades: 3 - 5