Name : ___________________________________________________Topic: Math Estimation of Sums and Differenceshttp://www.schoolkid.phContributor : RFAquinoDirections: Round off each number to its highest place value to estimate the sum.a) 71 + 64 + 47 b) 182 + 563 + 680 c) 482 + 318 + 196 7020050060600300+ 50+ 700+ 200d) 5 775 + 8 213 + 2 578 e) 42 156 + 7 584 + 6 248 f) 138 389 + 37 984 + 3 256 600042 000100 00080008 00038 000+ 3000+ 6 000+ 3 000Directions: Round off each number to its highest place value to estimate the difference.a) 715 190 b) 6 213 1 875 c) 9 431 3 684 70060009000- 200- 2000- 4000d) 87 508 45 126 e) 74 268 9 581 f) 832 563 18 048 9000070000800000- 50000- 10000- 20000Copyright 2012 www.schoolkid.ph All Rights Reserved. For Personal Use Only.