1. Find the products. Show your thinking. An example of how to show your thinking is provided. a. 1,400 × 20
b. 8,000 × 50
c. 120 × 300

2. Fill in the missing factors to find the given estimated product. The first one is done for you.

a. 582 x 23 ≈ __600 x ___20 = 12,000

b. 325 x 454 ≈ x = 150,000

c. 6,397 x 349 ≈ x = 1,800,000

3. Round the factors and estimate the products. Round to the highest place value.

a. 656 × 106 ≈ x =

b. 3,108 × 7,942 ≈ x =

c. 425 × 9,311 ≈ x =