By Abduhamid Dzhuraev
Considers the category of singular critical equations on bounded two-dimensional multiply attached domain names at the airplane, and their functions to the speculation of common elliptic platforms of partial differential equations.
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Let’s move on to multiplication. Symbols and Definitions Multiplication can be indicated in several ways: by the usual ϫ symbol; by a dot; or by parentheses, brackets, or braces. d bϫd b(d) (b)d (b)(d) Most common of all is to use no symbol at all. The product of b and d would usually be written bd. When doing algebra avoid using the ϫ symbol because it could get confused with the letter x. We get a product when we multiply two or more factors. (factor) (factor) (factor) ϭ product Multiplying by Calculator Many calculators use the ϫ key for multiplication and use an asterisk or star (*) on the screen to represent a multiplication dot.
11. (423 Ϫ 420)3 12. a 13. a 14. 2434 ϩ 466 141 3 b 47 853 Ϫ 229 2 b 874 Ϫ 562 15. 2(8)(72) 3 657 ϩ 553 Ϫ 1085 16. 2 4 (27)(768) 17. 2 18. 1136 C 71 2404 A 601 19. 4 20. 2961 ϩ 2121 4 625 ϩ 2961 Ϫ 2 3 216 21. 2 4 256 ϫ 349 22. 2 Combined Operations with Approximate Numbers Perform each computation, keeping the proper number of digits in your answer. 23. 64) 24. 59) 25. 72) 26. 604 29. 91 809 Ϫ 463 ϩ 744 30. 758 Ϫ 964 ϩ 508 27. 28. 31. 36)2 32. 24)4 33. 05)2 34. a 35. a 36. 62 3 657 ϩ 553 Ϫ 842 37.
14 ft? Can you see the reason for the following rule? ■ Addition and Subtraction ◆◆◆ When adding or subtracting approximate numbers, keep as many decimal places in your answer as contained in the number having the fewest decimal places. 5 has just one decimal place, we must round our answer to one decimal place. 9 gallons Here it is common practice to use the equals sign rather than the ഠ sign. 825 cm. 225 cm) Here we can see the reason for our rule for rounding. 4 cm), we do not know what digit is to the right of the 4, in the hundredths place.