Additional websites that I have used regularly are below:
https://whiterosemaths.com/homelearning?year=year-10
https://www.ilovepdf.com/split_pdf
https://www.tes.com/member/niccook
https://nixthetricks.com/Download.html
https://corbettmaths.com/5-a-day/gcse/
https://b28mathstutor.co.uk/clueless-about-calculators/
https://education.casio.co.uk/calculators/classwiz-product-range/
Y10U2 KO
Types of Number and Sequences
Geometric sequence
Y10U3 KO
Indices & Roots
Hardest Indices exam questions
Y10U4 KO
Percentages & Interest
Exponential growth
Y10U5 KO
Ratio
How to deal with Money when you Travel
Y10U6 KO
Trigonometry
Trig - ship navigation
Y10U7 KO
Congruence, Similarity & Enlargement
Similar shapes - Scale factor of Area and Volume
Y10U8 KO
Working with Circles
Circle Theorems
Y10U9 KO
Algebraic Fractions
Hardest Algebraic Fractions exam questions
Y10U10 KO
Vectors
What is a Vector?
Y10U11 KO
Probability
Tree diagrams
Y10U12 KO
Equations & Inequalities
Graphical regions - Inequalities
Y10U13 KO
Simultaneous Equations
Sim. Eq's. - 3 ways to solve
Y10U14 KO
Scale Drawings & Bearings
Bearings
Y10U15 KO
Data
Time series