P3 P4 P5 P6 Numbers Substitution (fr CCL)

P5 P6 Number Pattern (Fr CCL)

20 cups are used to form the pyramid below.
(a) How many cups will be needed to form a pyramid with 10 layers?
(b) What is the total number of cups need for the pyramid in (a) ie. the 10-layer pyramid ?

P4, 5, 6 measurement, distance, (fr CCL)

Sec2 Factorization (fr CKM)

P5 area of triangle (extension to a problem from brilliant.com

Area of triangle (fr brilliant.com)