NT Maths Lessons

Access interactive Deck.Toys maths lessons for Secondary 1 to 4, covering topics from numbers and algebra to trigonometry.

Last updated 2 August 2026

Sec 1

Sec 1 NT Maths topics and Deck.toys links

TOPIC	DECK.TOYS
Numbers I	https://deck.toys/a/QyZaeOlBd (opens in new tab)
Numbers II	https://deck.toys/a/mJ1_ZnZSu (opens in new tab)
Ratio	https://deck.toys/a/X1x9WA1gE (opens in new tab)
Percentage	https://deck.toys/a/X1nVsXex4 (opens in new tab)
Angles	https://deck.toys/a/71FOqUSgN (opens in new tab)
Statistics	https://deck.toys/a/m1YVG_mgN (opens in new tab)
Symmetry	https://deck.toys/a/7yKEZWd14 (opens in new tab)
Area & Perimeter	https://deck.toys/a/X1Tba01lV (opens in new tab)
Volume & Surface Area of Cube & Cuboids	https://deck.toys/a/XJOdRW2e4 (opens in new tab)
Algebra	https://deck.toys/a/7y7goMFbE (opens in new tab)

Sec 2 NT Maths topics and Deck.toys links

TOPIC	DECK.TOYS
Triangles & Quadrilaterals	https://deck.toys/a/QJfA94SxE (opens in new tab)
Congruency & Similarity	https://deck.toys/a/myQFJ0ze4 (opens in new tab)
Algebraic Manipulation	https://deck.toys/a/mkI6qK9-N (opens in new tab)
Linear Equations	https://deck.toys/a/Q1LkLtZg4 (opens in new tab)
Rate & Proportion	https://deck.toys/a/7kzLDgSgN (opens in new tab)
Functions & Graphs	https://deck.toys/a/QkLMvvuRm (opens in new tab)
Pythagoras Theorem	https://deck.toys/a/7koVV1r-N (opens in new tab)
Prisms & Cylinders	https://deck.toys/a/X1bANyNkN (opens in new tab)
Data Analysis	https://deck.toys/a/QJYQIWa14 (opens in new tab)
Probability	https://deck.toys/a/m1BbgiARQ (opens in new tab)

Sec 3 NT Maths topics and Deck.toys links

TOPIC	DECK.TOYS
Indices & Standard Form	https://deck.toys/a/7khnFlHxE (opens in new tab)
Map Scales	https://deck.toys/a/Xyvae4oWV (opens in new tab)
Algebraic Expressions, Equations & Formula	https://deck.toys/a/7kfylp4NE (opens in new tab)
Simultaneous Linear Equations	https://deck.toys/a/71kiyVNJV (opens in new tab)
Quadratic Equations	https://deck.toys/a/mkozK0XgE (opens in new tab)

Sec 4 NT Maths topics and Deck.toys links

TOPIC	DECK.TOYS
Cumulative Frequency Distribution	https://deck.toys/a/7JKzd-jGV (opens in new tab)
Mensuration	https://deck.toys/a/XkvQJVPX4 (opens in new tab)
Trigonometry	https://deck.toys/a/QklqqN5MN (opens in new tab)