Chapter 2 · Mathematics
Addition and Subtraction
Explore reasoning-focused learning resources for Class 2 Mathematics. Use the tabs below to switch views.
Chapter concepts overview
Brief public overview of listed concepts. Sign in for reviewed worksheets and mock tests for this chapter.
Number Stories
Create and solve number stories that involve addition and subtraction.
Definition
In the Erudio Learn curriculum map, "Number Stories" is practised through worksheets and mock tests after you sign in — not only through this short public overview.
Worked Example
Public pages show a brief overview only. A typical practice question for "Number Stories" would ask the child to apply the idea in a short problem.
Q: Sample prompt style: solve or choose the best option for a question about "Number Stories".
A: In the signed-in product, children answer reviewed bank questions and parents see mastery updates from those attempts.
Common Mistake
Skipping practice after reading an overview. Concept mastery on Erudio Learn comes from worksheet and mock-test attempts, not from browsing sample pages alone.
Basic Addition
Learn to add two-digit numbers using various strategies.
Definition
In the Erudio Learn curriculum map, "Basic Addition" is practised through worksheets and mock tests after you sign in — not only through this short public overview.
Worked Example
Public pages show a brief overview only. A typical practice question for "Basic Addition" would ask the child to apply the idea in a short problem.
Q: Sample prompt style: solve or choose the best option for a question about "Basic Addition".
A: In the signed-in product, children answer reviewed bank questions and parents see mastery updates from those attempts.
Common Mistake
Skipping practice after reading an overview. Concept mastery on Erudio Learn comes from worksheet and mock-test attempts, not from browsing sample pages alone.
Basic Subtraction
Learn to subtract two-digit numbers using different methods.
Definition
In the Erudio Learn curriculum map, "Basic Subtraction" is practised through worksheets and mock tests after you sign in — not only through this short public overview.
Worked Example
Public pages show a brief overview only. A typical practice question for "Basic Subtraction" would ask the child to apply the idea in a short problem.
Q: Sample prompt style: solve or choose the best option for a question about "Basic Subtraction".
A: In the signed-in product, children answer reviewed bank questions and parents see mastery updates from those attempts.
Common Mistake
Skipping practice after reading an overview. Concept mastery on Erudio Learn comes from worksheet and mock-test attempts, not from browsing sample pages alone.
Word Problems in Addition and Subtraction
Solve real-life problems involving addition and subtraction.
Definition
In the Erudio Learn curriculum map, "Word Problems in Addition and Subtraction" is practised through worksheets and mock tests after you sign in — not only through this short public overview.
Worked Example
Public pages show a brief overview only. A typical practice question for "Word Problems in Addition and Subtraction" would ask the child to apply the idea in a short problem.
Q: Sample prompt style: solve or choose the best option for a question about "Word Problems in Addition and Subtraction".
A: In the signed-in product, children answer reviewed bank questions and parents see mastery updates from those attempts.
Common Mistake
Skipping practice after reading an overview. Concept mastery on Erudio Learn comes from worksheet and mock-test attempts, not from browsing sample pages alone.