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Approximation

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stuartlock

This document contains 11 math problems asking students to estimate values, perform calculations, and round answers to varying degrees of accuracy. It provides practice with skills like subtraction, multiplication, division, using calculators, and rounding to significant figures. The overall document focuses on numerical estimation and calculation.

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1. Work out an estimate for the value of ………………………… (Total 2 marks)
2. (a) Work out 4.5 – 1.62 …………………………… (1) Work out 0.4 × 0.2 …………………………… (1) (c) Estimate the value of …………………………… (2) (Total 4 marks)
3. (a) Work out – .......................... (2) (b) Estimate the value of .......................... (2) (Total 4 marks)
4. Use your calculator to work out the value of Write down all the figures on your calculator display. .......................... (2) (b) Write your answer to part (a) to an appropriate degree of accuracy. .......................... (1) (Total 3 marks)
5. Work out an estimate for the value of …………………… (Total 2 marks) 6. Work out an estimate for (Total 3 marks)
7. Estimate the value of ................................. (Total 2 marks) 8. Estimate the value of ………………… (Total 3 marks)
9. (i) Write down a calculation that could be done to estimate the answer to Use numbers rounded to 1 significant figure. (ii) Write down the answer to your estimate in (i). …………… (Total 2 marks)
10. Work out Write down all the figures on your calculator display. ..................................... (2) (b) Give your answer to part (a) to an appropriate degree of accuracy. ..................................... (1) (Total 3 marks)
11. Work out an estimate for the value of ........................................... (Total 3 marks)

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Approximation

  • 1. 1. Work out an estimate for the value of ………………………… (Total 2 marks)
  • 2. 2. (a) Work out 4.5 – 1.62 …………………………… (1) Work out 0.4 × 0.2 …………………………… (1) (c) Estimate the value of …………………………… (2) (Total 4 marks)
  • 3. 3. (a) Work out – .......................... (2) (b) Estimate the value of .......................... (2) (Total 4 marks)
  • 4. 4. Use your calculator to work out the value of Write down all the figures on your calculator display. .......................... (2) (b) Write your answer to part (a) to an appropriate degree of accuracy. .......................... (1) (Total 3 marks)
  • 5. 5. Work out an estimate for the value of …………………… (Total 2 marks) 6. Work out an estimate for (Total 3 marks)
  • 6. 7. Estimate the value of ................................. (Total 2 marks) 8. Estimate the value of ………………… (Total 3 marks)
  • 7. 9. (i) Write down a calculation that could be done to estimate the answer to Use numbers rounded to 1 significant figure. (ii) Write down the answer to your estimate in (i). …………… (Total 2 marks)
  • 8. 10. Work out Write down all the figures on your calculator display. ..................................... (2) (b) Give your answer to part (a) to an appropriate degree of accuracy. ..................................... (1) (Total 3 marks)
  • 9. 11. Work out an estimate for the value of ........................................... (Total 3 marks)