SALTA 2nd grade

2.NBT.5 2.OA.1

Strand: Numbers and Operations in Base Ten

Topic 6: Fluently Subtract Within 100

Topic 6:

Second grade students will use place value understanding and properties of operations to add and subtract. Standard 2.NBT.5 Fluently add and subtract within 100 using strategies based on place value, properties of operations, and/or the relationship between addition and subtraction.

Pick a Project: •

Partial Differences

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Snakes and Lizards

Class Sizes

• • •

Interesting Places to Visit

Stars in the Sky

No 3-Act Math Task for this Topic

Strand: Operations and Algebraic Thinking

6-1 Subtract 1-Digit Numbers Using Models 6-2 Subtract 2-Digit Numbers Using Models 6-3 Subtract using Partial Differences 6-4 Continue to Subtract Using Partial Differences 6-5 Practice Subtracting 6-6 Solve One-Step and Two-Step Problems 6-7 Math Practices and Problem Solving: Reasoning

Second grade students will represent and solve problems involving addition and subtraction.

Standard 2.OA.1 Use addition and subtraction within 100 to solve one- and two-step word problems involving situations of adding to, taking from, putting together, taking apart, and comparing with unknowns in all positions by, for example, using drawings and equations with a symbol for the unknown number to represent the problem.

Topic 6 Manipulative: •

Place-value blocks

Assessment Options: Topic 6 Assessment – Fluently Subtract Within 100 (print or online) Topic 6 Performance Assessment – Fluently Subtract Within 100 Team Created Assessment

Assessment Tasks – Topic 6 USBE 2 nd Grade Standards Assessments

Procedural Check

Application Task

2.NBT.5

Fill in the missing numbers. 55, ____, 45, 40, _____ , 30

Rory earned $52 helping his father. If he spends $10 a month on movies. How many months can he rent movies? Will he have any money left? Justify your

120, 110, _____ , 90, _____ , 70 875, _____, 675, 575, ______, 375 (DOK 1)

answer. (DOK 3)