Estimation - Hundreds Practice estimating/rounding to the nearest hundreds. Tools A B 125 100 150 200 274 300 899 900 996 1000 451 500 1235 1200 4560 4600 834 800 789 800 501 500 367 400 481 500 865 900 160 200 345 300 930 900 703 700 639 600 758 800