Determine the area of a 1.7 unit by a 3.1 unit rectangle, without multiplying, using a base ten area drawing. Then you may verify using a calculator

Answer 1

Use quadrille graph paper, and plot a line 17 small squares and a perpendicular line 31 small squares. Complete the rectangle and shade in the squares. Count the squares. Move the decimal place two over to the right. That is the area.