  # Arizona - Grade 1 - Math - Operations and Algebraic Thinking - Addition and Subtraction Word Problems - 1.OA.1

### Description

Use addition and subtraction within 20 to solve word problems with unknowns in all positions (e.g., by using objects, drawings, and/or equations with a symbol for the unknown number to represent the problem).

• State - Arizona
• Standard ID - 1.OA.1
• Subjects - Math Common Core

### Keywords

• Math
• Operations and Algebraic Thinking

## More Arizona Topics Compose two-dimensional shapes or three-dimensional shapes to create a composite shape. Solve word problems that call for addition of three whole numbers whose sum is less than or equal to 20 (e.g., by using objects, drawings, and/or equations with a symbol for the unknown number to represent the problem). Count to 120 by 1's, 2's, and 10's starting at any number less than 100. In this range, read and write numerals and represent a number of objects with a written numeral. Demonstrate understanding of addition within 100, connecting objects or drawings to strategies based on place value (including multiples of 10), properties of operations, and/or the relationship between addition and subtraction. Relate the strategy to a written form. Subtract multiples of 10 in the range of 10 to 90 (positive or zero differences), using objects or drawings and strategies based on place value, properties of operations, and/or the relationship between addition and subtraction. Relate the strategy to a written form.

## Here is the skill that Arizona requires you to master

• State Test AzMERIT
• State Standards Arizona's College and Career Ready Standards
• Subject Math
• Topic Name Addition and Subtraction Word Problems
• Standard ID 1.OA.1
• Description
Use addition and subtraction within 20 to solve word problems with unknowns in all positions (e.g., by using objects, drawings, and/or equations with a symbol for the unknown number to represent the problem).  