1. Estimating Length and Area
COURSE 2 LESSON 8-1
Each square represents 50 yd2. Estimate the area of the shaded figure.
Then count the number of squares that are about half-filled. 2 4
Count the number of squares filled or almost filled. 3
Estimate the number of squares filled by adding the filled squares plus the half-filled squares, which is (4), or 5. 1 4
Multiply 5 by 50 yd2.
The area is about 250 yd2.
8-1

2. Estimating Length and Area
COURSE 2 LESSON 8-1
Choose an appropriate customary unit of length for
estimating each measurement.
1. a bed 2. a dollar bill 3. a soccer field
4. Estimate the area. Each
square represents 5 cm2. ft
in. yd
about 75 cm2
8-1