It is hard for one to take a measurement and get an exact result. Percentage error is a little degree in percent at which a known length is measured above/below its actual value. The error that might be made during the measurement could be either positive or negative, in any ways just know that error […]
Percentage Gain: Every Transaction is profitable, but when you sell article below its cost price, it is thus a Loss. Gain:= Selling Price(SP) – Cost Price(CP) Example 1: Chisom bought an article #250 and sold it #300. What gain did she make? Solution:CP = #250SP = #300Gain = SP – CP = #300 – #250
How to find percentage: A percentage of any quantity is a degree by which that very quantity exists. It is another form of Proportion, Ratio or even Fraction. Note that a percentage of any quantity at its normal existence is 100 and it is represented with the simbol “%”. Examples of percentages are:x%, y%, z%
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Proportions in mathematics has to do with the method of representing the comparisons of two or more quantities and it usually contains units. There are three types of proportions in mathematics, which are: Direct or Simple proportion: This type of proportion compares two quantities in a way that when one quantity increases, the other quantity
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Ratios are numerical way/method used to compare two quantities of the same type, the quantities can be weight, money, ages, marks, length, volume, Area etc.When two quantities are being compared, they can be in fraction or separated by column in-between them, example x/y or x:y respectively. If a/b and x/y are two different ratios given,
Before one can add or subtract in standard form, the powers of the 10( that is ⁿ) in the numbers to be added or subtracted must be made to be equal. Example 1: 5.4 x 10⁴ + 6.04 x 10³ Solution:Either you make the first power to be equal to the second power or you
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A particular number is said or observed to be in standard form if it is written in this form:V x 10ⁿ. 1 ≤ V < 10Where V can be in positive/negative whole number or positive/negative decimal number. (ⁿ) is the number of times a point moves either on the LEFT hand side or at the
Approximations are estimate in Amount, Numbers, Distances etc. that are almost correct, but not exact. It is a unique method of counting to nearest wholes, which might be Tens, Hundreds, Thousands, Weights, Distances, Time and so many other values. Example 1: Correct 4726.6282 to the nearest(a) thousand, (b) hundred, (c) ten (d) whole number, (e)
Significant figures (s.f) is the positioning of digits from 0 to 9 in a numeral with the exclusion of zero in some cases, this is applicable to both Whole and Decimal numbers. Characteristics of significant Figures Any non Zero digit is significant, eg. Digits from 1 to 9. That is 1 2 3 4 5
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How to add and subtract decimals: When adding or subtracting decimal numbers, make sure you arrange the given decimal numbers in a column and the decimal points of each decimal number aligns with another down the column. DECIMALS: Decimal is equivalent to Fraction, it is another unique way of expressing Fractions. Decimals are figures seen
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