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Common Core: Math
CCLS - Math: 1.NBT.5
- Category
- Number And Operations In Base Ten
- Sub-Category
- Use Place Value Understanding And Properties Of Operations To Add And Subtract.
- State Standard:
- Given a two-digit number, mentally find 10 more or 10 less than the number, without having to count; explain the reasoning used.
13 Results
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- Grade 1 Module 4: Place Value, Comparison, Addition and Subtraction to 40 Module 4 builds upon Module 2’s work with place value within 20, now focusing on the role of place value in the addition and...
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- Grade 1 Module 6: Place Value, Comparison, Addition and Subtraction to 100 In this final module of the Grade 1 curriculum, students bring together their learning from Module 1 through Module 5 to...
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- Module 4 builds on students’ work with teen numbers to now work within 40. Working within 40 helps students focus on the units, tens and ones, which can be easily modeled pictorially and concretely...
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- Objective: Identify 10 more, 10 less, 1 more, and 1 less than a two-digit number.
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- Objective: Use dimes and pennies as representations of tens and ones.
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- Topic B extends students’ use of counting sequences and understanding of tens and ones to numbers up to and including 120. In Lesson 3, students apply their understanding of tens and ones to two-...
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- Objective: Add a pair of two-digit numbers with varied sums in the ones.
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- Objective: Add a pair of two-digit numbers when the ones digits have a sum less than or equal to 10.
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- Objective: Add a pair of two-digit numbers when the ones digits have a sum less than or equal to 10.
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- Objective: Identify 10 more, 10 less, 1 more, and 1 less than a two-digit number within 100.
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- Objective: Add a pair of two-digit numbers when the ones digits have a sum greater than 10.
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- Objective: Add a pair of two-digit numbers when the ones digits have a sum greater than ten.
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- Objective: Add a pair of two-digit numbers with varied sums in the ones.