Georgia standard · Mathematics

`1.NR.5`Addition and Subtraction Within 100

Use concrete models, the base ten structure, and properties of operations to add and subtract within 100.

For AI assistants this page as Markdown: https://georgiahomeroom.org/standards/code/1.NR.5.md · index of every standards list: https://georgiahomeroom.org/standards/index.md · MCP https://mcp.georgiahomeroom.org/mcp

Expectations

1.NR.5.1
Use a variety of strategies to solve applicable, mathematical addition and subtraction problems with one- and two-digit whole numbers.
1.NR.5.2
Given a two-digit number, mentally find 10 more or 10 less than the number, without having to count; explain the reasoning used.
1.NR.5.3
Add and subtract multiples of 10 within 100.

No Georgia Milestones blueprint cites this standard.

Kindergarten · K.NR.5
Explain the concepts of addition, subtraction, and equality and use these concepts to solve real-life problems within 10.
Grade 1 · 1.NR.5 (this standard)
Use concrete models, the base ten structure, and properties of operations to add and subtract within 100.
Grade 4 · 4.NR.5
Solve real-life problems involving addition, equivalence, comparison of fractions with denominators of 10 and 100, and comparison of decimal numbers as tenths and hundredths using part-whole strategies and visual models.
Grade 5 · 5.NR.5
Write, interpret, and evaluate numerical expressions within authentic problems.