SALTA 2nd grade

2.NBT.5 2.OA.1

Strand: Numbers and Operations in Base Ten

Topic 5: Subtract Within 100 Using Strategies

Topic 5:

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: •

No new vocabulary words

Gopher Tortoises

Temperature Changes

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Review as needed

Moons

5-1 Subtract Tens and Ones on a Hundred Chart 5-2 Count Back to Subtract on an Open Number Line 5-3 Add Up to Subtract Using an Open Number Line 5-4 Break Apart Numbers to Subtract 5-5 Subtract Using Compensation 3-ACT MATH: Laundry Day 5-6 Practice Subtracting Using Strategies 5-7 Solve One-Step and Two-Step Problems 5-8 Math Practices and Problem Solving: Critique Reasoning

Strand: Operations and Algebraic Thinking

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 5 Manipulatives: •

Place-value blocks

Assessment Options: Topic 5 Assessment – Subtract Within 100 Using Strategies (print or online) Topic 5 Performance Assessment – Subtract Within 100 Using Strategies Team Created Assessment

Assessment Tasks – Topic 5 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)