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Math 11e – Basic Skills 01 - Place Value, Rounding and BEDMAS Basic Skills Place Value, Rounding and BEDMAS Place Value is the term used to describe a specific numeral in a number. Examples of whole number place values are; “ones”, “tens”, “hundreds”, “thousands” Examples of place values that are less than a whole (1) are: “tenths” “hundredths”, “thousandths”. Rounding is making large, detailed numbers close to a desired, manageable place value. For example, the number 3.142857142857 is a large detailed number that can be rounded to the nearest “hundredth” to create the number 3.14. Rounding is simply picking a place value you wish to round to, identifying that number, looking to the number to the right of that number and if that number is 4 or less, your place value number stays the same. If the number to the right is 5 or more, your place value number changes up by one. BEDMAS is an acronymn that is used to tells us the order in which we solve a mathmatic equation (order of operations) The tendency is to solve a problem as we read, from left to right. Unfortunately, Math is not English. Math requires us to solve in a particular order. Your Turn… Give the place value of the digit “3” in each number. (ones, tens, hundreds, thousands, tenths, hundredths, thousandths) 1. 2.35 _______________________ 2. 16.093 _______________________ 3. 0.134 _______________________ 4. 43.75 _______________________ 5. 358.12 _______________________ Write the numeral form of the following numbers; 6. twenty-seven and four tenths _______________________ 7. two and seventy-four hundredths _______________________ 8. eighty and one hundred sixth thousands _______________________ 9. five hundred three and nine tenths _______________________ 10. fifty-three and nine thousandths _______________________ Round to the nearest tenth. Round to the nearest hundredths 11. 6.43 _________ 16. 8.333 _________ 12. 17.19 _________ 17. .06551 _________ 13. 3.751 _________ 18. 24.79006 _________ 14. 0.5059 _________ 19. 3.845188 _________ 15. 6.6666 _________ 20. .060942222 _________ On a separate piece of paper solve the following questions using BEDMAS. You MUST write out the equation and then work through at least TWO steps. 21. (5 + 2) x 2 – 6 = y 26. (18 – 12) x 4 – 3 x 3 = y 22. 16 – 4 – 5 x 2 = y 27. (3 + 2 x 4) x 2 – 1 = y 23. 5 x 5 – 2(3 + 4) = y 28. (17 – 3) x 2 – (9 + 7) = y 24. (4 x 6 – 2) – 2 = y 29. 3(9 – 7) + 2(5 – 3) = y 25. 24 8x2–4 30. 5x7 (9 – 4)