Model Decimal Fractions with Flats, Rods & Squares 5-90
Model decimal fractions. If a flat is 1/10, what's a rod? 10 rods = 1 flat, so 1 rod = 1/10 flat and a rod is 1/10 x 1/10 = 1/100. A square? 10 squares = 1 rod, so 1 square = 1/10 rod and a square is 1/10 x 1/100 = 1/1,000. What's 2 flats, 3 rods, and 5 squares? The total value is (2 x 1/10) + (3 x 1/100) + (5 x 1,000) = 235/1,000.
