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Основно съдържание

STANDARDS

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US-ND

Math

North Dakota Math

Grade 1: Operations and Algebraic Thinking

Represent and solve problems involving addition and subtraction.

1.OA.1

Fully covered
Use strategies to add and subtract within 20 to solve word problems involving situations of adding to, taking from, putting together, taking apart, and comparing, with unknowns in all positions.

1.OA.2

Not covered
Solve word problems that call for addition of three whole numbers whose sum is less than or equal to 20.
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Understand and apply properties of operations and the relationship between addition and subtraction.

1.OA.3

Not covered
Apply properties of operations as strategies to add and subtract.
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1.OA.4

Not covered
Demonstrate understanding of subtraction as an unknown-addend problem.
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Add and subtract within 20.

1.OA.5

Not covered
Relate counting to addition and subtraction.
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1.OA.6

Mostly covered
Use strategies to add and subtract within 20. Fluently add and subtract within 10.

Work with addition and subtraction equations.

1.OA.7

Not covered
Demonstrate understanding of the meaning of the equal sign, and determine if equations involving addition and subtraction are true or false.
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1.OA.8

Not covered
Determine the unknown whole number in an addition or subtraction equation that uses three whole numbers.
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