HP 33s hp 33s_user's manual_English_E_HDPM20PIE56.pdf - Page 53
Exercises, Order of Calculation, Calculate, Solution
UPC - 082916001456
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Exercises Calculate: (16.3805x5) = 181.0000 0.05 Solution: 16.3805 5 z # .05 q Calculate: [(2 + 3) × (4 + 5)] + [(6 + 7) × (8 + 9)] = 21.5743 Solution: 2345z#6789z # Calculate: (10 - 5) ÷ [(17 - 12) × 4] = 0.2500 Solution: 17 12 4 z 10 5 [ q or 10 5 17 12 4 z q Order of Calculation We recommend solving chain calculations by working from the innermost parentheses outward. However, you can also choose to work problems in a left-to-right order. For example, you have already calculated: 4 ÷ [14 + (7 × 3) - 2] by starting with the innermost parentheses (7 × 3) and working outward, just as you would with pencil and paper. The keystrokes were 7 3 z 14 2 4 [ q. If you work the problem from left-to-right, press 4 14 7 3 z 2 q. RPN: The Automatic Memory Stack 2-13