Topics Covered

This chapter includes these main areas.

Worksheets

Start with a practice set, then use the revision set for mixed review.

Practice Set 1

A first mixed practice set for decimal expansions, HCF/LCM, and introductory divisibility.

Problems
15
Difficulty
★★★☆☆
Estimated time
20-25 min

Practice Set 2

A second mixed practice set with more Euclid algorithm and residue-class reasoning.

Problems
16
Difficulty
★★★★★
Estimated time
25-30 min

Revision Set

A full Chapter 1 revision set covering decimal expansion, HCF/LCM, and number theory.

Problems
20
Difficulty
★★★★★
Estimated time
35-45 min