Break a side apart
7 × 12 = 84 square units G3–4
How this one works
How
cut a long side into friendly parts, find each piece, then add the pieces.
Best when
one side feels too big to multiply all at once.
seen one of these on a test? See it on a real question: TEKS 3.6C, area with unit squares, or TEKS 4.5D, perimeter and area of rectangles.
The same problem, other ways