# Arkansas - Grade 1 - Math - Operations and Algebraic Thinking - Properties of Operations - 1.OA.3

### Description

Apply properties of operations as strategies to add and subtract.2 Examples: If 8 + 3 = 11 is known, then 3 + 8 = 11 is also known. (Commutative property of addition.) To add 2 + 6 + 4, the second two numbers can be added to make a ten, so 2 + 6 + 4 = 2 + 10 = 12. (Associative property of addition.)

• State - Arkansas
• Standard ID - 1.OA.3
• Subjects - Math Common Core

### Keywords

• Math
• Operations and Algebraic Thinking

## More Arkansas Topics

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 equations with a symbol for the unknown number to represent the problem.

Count to 120, starting at any number less than 120. In this range, read and write numerals and represent a number of objects with a written numeral.

Add within 100 using concrete models or drawings, relate the strategy used to a written expression or equation, and be able to explain the reasoning.

Subtract multiples of 10 from multiples of 10 (both in the range of 10-90) using concrete models or drawings, relate the strategy to a written method, and explain the reasoning used.

Order three objects by length; compare the lengths of two objects indirectly by using a third object.