# Approximation And Estimation

## Standard form in Mathematics

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 […]

## Standard Form

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

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

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

## How to add and subtract decimals

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

## Fractions

FRACTIONS: fractions are wholes that consist of Numerators and Denominators that are separated with a Division sign. Numerator: (At the top) Division sign: (At the middle) and  Denominator: (At the bottom). It is simply a figure placed on another figure.  Example of a fraction is 1/x, Where 1 is the Numerator (/) is the

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