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GENERAL ORALS
CHAPTER 1 - MATHEMATICS
| Question | Answer |
|---|---|
| DESCRIBE THE RESULT OF ADDING A LARGE POSITIVE NUMBER AND A SMALL NEGATIVE NUMBER. | A SMALLER POSITIVE NUMBER. |
| HOW DO YOU CONVERT A FRACTION INTO A DECIMAL? | DIVIDE THE NUMBERATOR BY THE DENOMINATOR. |
| WHAT IS THE KEY STEP THAT MUST BE PERFORMED IN ORDER TO ADD OR SUBTRACT UNLIKE FRACTIONS? | FIND THE LEAST COMMON DENOMINATOR. |
| HOW DO YOU DIVIDE ONE FRACTION BY ANOTHER? | INVERT THE SECOND FRACTION AND MULTIPLY ACROSS. |
| HOW CAN YOU CONVERT A DECIMAL INTO A PERCENT? | MULTIPLY THE DECIMAL BY 100 AND ADD A PERCENT SIGN. OR MOVE THE DECIMAL OVER TWO SPACES TO THE RIGHT AND ADD A PERCENT SIGN. |
| HOW DO YOU CONVERT A FRACTION INTO A PERCENT? | CONVERT IT INTO A DECIMAL, TIMES THE DECIMAL BY 100, AND ADD A PERCENT SIGN. |
| HOW DO YOU CHANGE A DECIMAL INTO THE NEAREST EQUIVALENT FRACTION? | PLACE THE DECIMAL OF ITS PLACE VALUE. REDUCE IF ABLE. EX: 0.8 IS THEN 8/10 WHEN REDUCED = 4/5. |
| WHAT ARE TWO DIFFERNT WAYS THAT A RATIO MAY BE EXPRESSED? | (1) AS A FRACTION (2) BY USING A COLON (:) BETWEEN THE NUMBERS (3) BY USING THE WORD "TO" BETWEEN THE NUMBERS. |
| WHAT IS A PROPORTION? | A STATEMENT OF EQUALITY BETWEEN TWO OR MORE RATIOS. |
| WHAT IS MEANT BY THE ROOT OF A NUMBER? | A ROOT IS TWO OR MORE EQUAL SMALLER NUMBERS THAT, WHEN MULTIPLIED TOGETHER, EQUAL THE SPECIFIED NUMBER. EX. 4X4 IS A ROOT OF 16 ----- 4^2----- 4 TO THE POWER OF 2 |
| HOW DO YOU FIND THE SQUARE OF A NUMBER? GIVE AN EXAMPLE. | MULTIPLY THE NUMBER BY ITSELF. EX. 4X4 IS A ROOT OF 16 ----- 4^2----- 4 TO THE POWER OF 2 |
| WHAT IS A COMMON METHOD OF MAKING COMPUTATIONS INVOLVING VERY LARGE OR VERY SMALL NUMBERS MORE MANAGEABLE? | CONVERT THE NUMBERS INTO SCIENTIFIC NOTATION, BY USING POWERS OF 10. EX. 100,000 IN SCIENTIFIC NOTATION IS 10^5. (NOTE) COUNT THE NUMBER OF ZEROS AND THAT WILL BE YOUR POWER NUMBER. |
| HOW IS 100,000 EXPRESSED AS A POWER OF 10? | 10^5 OR TEN (10) TO THE POWER OF FIVE (5) EX. 100,000 IN SCIENTIFIC NOTATION IS 10^5. (NOTE) COUNT THE NUMBER OF ZEROS AND THAT WILL BE YOUR POWER NUMBER. |
| WHAT FORMULA IS USED TO FIND THE AREA OF A RECTANGLE AND OF A TRIANGLE? | AREA OF A RECTANGLE: AREA (A) =LENGTH (L) X WIDTH (W) A = L X W AREA OF A TRIANGLE: AREA (A) = 1/2 (BASE (B) X HEIGHT (H)) A = 1/2 (B X H) |
| DEFINE PI (π). | PI IS A CONSTANT THAT EXPRESSES THE RELATIONSHIP BETWEEN THE CIRCUMFRANCE OF A CIRCLE AND ITS DIAMETER. PI IS APPROXIMATELY EQUAL TO 3.1416. |
| DECRIBE A TRAPEZOID. | A TRAPEZOID IS A CLOSED, FOUR-SIDED FIGURE HAVING TWO PARALLEL SIDES AND TWO NON-PARALLEL SIDES. ⏢ |
| WHAT IS THE FORMULA FOR COMPUTING THE AREA OF A CIRCLE? | AREA OF A CIRCLE: AREA (A) = PI (π) X RADIUS SQUARED (r^2) A = πr^2 |
Created by:
brookburns34924
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