Term 4 sheet 3 Question 22

Predict: I predict that  this will be about addition.

Clarify : (Nothing to clarify).

BIG Question:The big question is how many blocks are in this arrangement .

Mathematician toolbox: Wright a number sentence .

Solve:  This puzzle consists of four different layers .The bottom layer has 3×3 cubes which equals 9, The next layer has 2×2 which equals 4 . Then the next layer is 1×2 which equals 2 .Then the  final layer 1×1 which equals 1 . To get the answer add  9+4+2+1 which equals 16.