CBSE Class 4 Mathematics — Flashcards for Quick Revision

A: A 3D shape is a shape that has length, width, and height. It takes up space and has volume. Examples: cube, cylinder, sphere, cone, pyramid.

A: A prism has two parallel faces of the same shape connected by rectangular faces. A pyramid has one base and all other faces are triangles that meet at one point (apex).

A: A cube has 6 faces, 12 edges, and 8 corners (vertices). All faces are squares of equal size.

A: The three main views are: 1) Top view (looking from above), 2) Front view (looking from the front), and 3) Side view (looking from the side). Each view shows different parts of the same object.

A: You are seeing the top view of the brick. The top view shows how the object looks when you are directly above it, like looking down from the ceiling.

A: Three children draw the same brick differently because they are looking at it from different positions - one from the top, one from the front, and one from the side. Each position gives a different vi

A: A pattern is a regular arrangement or sequence that repeats in a predictable way. Examples include arrangements of objects, numbers, or shapes that follow a rule.

A: 4 × 5 = 20 coconut trees. We can count by grouping: 5 + 5 + 5 + 5 = 20 trees total.

A: Grouping means organizing objects into equal sets to make counting easier and faster. Instead of counting one by one, we can count by groups like 5s or 10s.