Chapter 2 · Mathematics
Basic Operations
Explore reasoning-focused learning resources for Class 1 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.
Problem Solving with Operations
Solving word problems involving addition and subtraction.
Definition
In the Erudio Learn curriculum map, "Problem Solving with Operations" 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 "Problem Solving with Operations" 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 "Problem Solving with Operations".
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.
Addition Concepts
Understanding the concept of addition using objects.
Definition
In the Erudio Learn curriculum map, "Addition Concepts" 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 "Addition Concepts" 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 "Addition Concepts".
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.
Subtraction Concepts
Understanding the concept of subtraction using objects.
Definition
In the Erudio Learn curriculum map, "Subtraction Concepts" 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 "Subtraction Concepts" 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 "Subtraction Concepts".
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.