Circle the best estimate for each product

Circle the best estimate for each product. 1.14.E-l'-t= 5.? 10 100 1.000. 2. 040.5 =+= 0.4 4 40 400. 3. 3.?0 t 1.01 B 00 B00. 4. F054 H: 0.03 3 50 300...