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Estimation

Estimation. Estimate the answers to the following multiplications & divisions. 19 x 31 49 x 37 123 x 321 8995 ÷ 35 63168 ÷ 64 1.7 x 4.2 0.56 x 0.091 0.125 ÷ 0.025 0.56 x 37 3.6 ÷ 0.0012. = 589 (550 - 600) = 1813 (1800 - 2000) = 39483 (30000 - 40000) = 257 ( 260 - 300)

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Estimation

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  1. Estimation Estimate the answers to the following multiplications & divisions.

  2. 19 x 31 49 x 37 123 x 321 8995 ÷ 35 63168 ÷ 64 1.7 x 4.2 0.56 x 0.091 0.125 ÷ 0.025 0.56 x 37 3.6 ÷ 0.0012 = 589 (550 - 600) = 1813 (1800 - 2000) = 39483 (30000 - 40000) = 257 ( 260 - 300) = 987 ( 980 - 1000) = 7.14 ( 6 - 8) = 0.05096 ( 0.048 - 0.06) = 5 (4 - 6) = 20.72 ( 15 - 24) = 3000 ( 2500 - 4000) Estimate A good estimate will be within the range shown by the brackets.

  3. PowerPoints By S. Howarth • ORB Education. Visit www.orbeducation.com for a range of quality teaching resources.

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