Area Composite Rectilinear
Area Composite Rectilinear practice with teacher guidance, common slips, and next-step routes.
Loading task…
Print: Ages 10–11 · 3–5 min · Core · Composite Area · Independent practice · Area reasoning
Watch: Watch for a response of 312; it shows the learner used the 12 m by 26 m bounding rectangle without removing the missing lower-left part.
Misread: For the noun, 120 treats the missing rectangle as the whole; for the action, 150 reads “three times” as “plus 3”; typing “192 m²” is an answer-box misread because the unit is already shown.
Curriculum: This task assesses deriving missing side lengths from multiplicative relationships and decomposing a rectilinear figure into non-overlapping rectangles to calculate total area in square metres.