1) The best estimate for 62 x 192 is a) 70 x 200 b) 70 x 100 c) 60 x 100 d) 60 x 200 2) The best estimate for 595 ÷ 19 is a) 500 ÷ 10 b) 600 ÷ 10 c) 600 ÷ 20 d) 500 ÷20 3) The best estimate for 49 x 52 is a) 40 x 60 b) 50 x 60 c) 40 x 60 d) 50 x 50 4) The best estimate for 999 - 101 is a) 1000 - 100 b) 1000 - 90 c) 900 - 100 d) 900 - 90 5) The best estimate for 209 + 295 is a) 400 b) 500 c) 600 d) 300 6) The best estimate for 696 - 102 is a) 800 b) 700 c) 600 d) 500 7) The best estimate for 5963 + 1013 is a) 5000 b) 6000 c) 7000 d) 8000 8) The best estimate for 4989 - 3010 is a) 5000 b) 4000 c) 3000 d) 2000 9) The best estimate for 21 x 99 is a) 400 b) 4000 c) 200 d) 2000 10) The best estimate for 501 ÷ 49 is a) 50 b) 500 c) 10 d) 100

Estimation in the basic operations

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