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STANDARDS

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US-MO

Math

Missouri Math

Grade 1: Relationships and Algebraic Thinking

1.RA.A

Represent and solve problems involving addition and subtraction.

1.RA.A.1

Partially covered
Use addition and subtraction within 20 to solve problems.

1.RA.A.2

Not covered
Solve problems that call for addition of three whole numbers whose sum is within 20.
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1.RA.A.3

Not covered
Develop the meaning of the equal sign and determine if equations involving addition and subtraction are true or false.
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1.RA.A.4

Not covered
Determine the unknown whole number in an addition or subtraction equation relating three whole numbers.
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1.RA.B

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

1.RA.B.5

Not covered
Use properties as strategies to add and subtract.
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1.RA.B.6

Partially covered
Demonstrate that subtraction can be solved as an unknown-addend problem.

1.RA.C

Add and subtract within 20.

1.RA.C.7

Partially covered
Add and subtract within 20.

1.RA.C.8

Mostly covered
Demonstrate fluency with addition and subtraction within 10.