If you're seeing this message, it means we're having trouble loading external resources on our website.

If you're behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked.

Main content

STANDARDS

 > 

US-AZ

Math

Arizona Math

Grade 1: Operations and Algebraic Thinking (OA)

1.OA.A

Represent and solve problems involving addition and subtraction.

1.OA.A.1

Fully covered
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).

1.OA.A.2

Not covered
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).
(Content unavailable)

1.OA.B

Understand and apply properties of operations and the relationship between addition and subtraction.

1.OA.B.3

Not covered
Apply properties of operations (commutative and associative properties of addition) as strategies to add and subtract through 20. (Students need not use formal terms for these properties.)
(Content unavailable)

1.OA.B.4

Not covered
Understand subtraction as an unknown-addend problem within 20 (e.g., subtract 10 - 8 by finding the number that makes 10 when added to 8).
(Content unavailable)

1.OA.C

Add and subtract within 10.

1.OA.C.5

Not covered
Relate counting to addition and subtraction (e.g., by using counting on 2 to add 2).
(Content unavailable)

1.OA.C.6

Mostly covered
Fluently add and subtract within 10.

1.OA.D

Work with addition and subtraction equations.

1.OA.D.7

Not covered
Understand the meaning of the equal sign, and determine if equations involving addition and subtraction are true or false (e.g., Which of the following equations are true and which are false? 6 + 1 = 6 - 1, 7 = 8 - 1, 5 + 2 = 2 + 5, 4 + 1 = 5 + 2).
(Content unavailable)

1.OA.D.8

Not covered
Determine the unknown whole number in an addition or subtraction equation relating three whole numbers (e.g., determine the unknown number that makes the equation true in each of the equations 8 + □ = 11, 5 = □ - 3, 6 + 6 = □).
(Content unavailable)