1) Estimate 2598 to the nearest 100 a) 2600 b) 2500 c) 2590 2) Round 455 to the nearest 10 a) 450 b) 460 c) 440 3) Estimate to the nearest 1,000: 45,456  a) 45,500 b) 46,000 c) 45,000 4) Estimate: 673 - 322 = ______ a) 500 b) 400 c) 300 5) Estimate: 22 + 47 = _____ a) 80 b) 90 c) 70 6) Estimate: 215 + 829 = _____ a) 1,000 b) 900 c) 1,200 7) Estimate: 92 - 46 = _____ a) 1,300 b) 50 c) 40 8) Estimate: 688 + 72 = _____ a) 900 b) 770 c) 600

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