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Solutions for Computer Studies, Class 8, ICSE
What is a Formula? Explain with the help of an example.
A Formula is a user defined instruction to perform calculations. It is an expression that can include cell addresses, numbers, arithmetic operators and parenthesis. It begins with equal to (=) symbol, followed by cell references and operators. For example:=A2+B2*5-SUM(E3:E5)
What is Cell Reference? Mention its types.
The cell address that we use in the formula is known as the cell reference. The address of the cell consists of the column letter followed by the row number. For example, cell address A1 denotes the column name as A and the row number as 1. The different types of cell references are Relative reference, Absolute reference and Mixed reference.
What do you know about Absolute Reference? Explain with the help of an example.
Absolute reference is used when we do not want to change the address of the cell while copying the formula to another cell. To use absolute reference in a cell, you need to add dollar ($) sign before the column and row number. For example: =$A$1+$A$2
Explain circular reference with an example.
A circular reference occurs when a formula in a cell refers to its own cell value directly or indirectly. For example, if you enter the formula =A1+A2*3 in cell A2, you are making the formula to refer to its own cell value, which creates a circular reference.
What do you mean by a Function? Name some of the Functions.
Functions are the pre-designed formulas in Excel to perform both simple and complex calculations. Functions begin with the equal to (=) sign followed by the function name and then the list of arguments separated by comma within the parenthesis. For example, =Function name (argument1, argument2....). Some of the commonly used functions are:
What are the rules to enter a Function?
The rules to enter a Function are:
=SUM (A1:A5).A Sports teacher has measured the height of the students in a class. Saumya has been given the assignment to find the maximum and minimum height from the collected data. Suggest the function, which she should use to accomplish the task.
Saumya can use MAX() function to find the maximum height and MIN() function to find the minimum height.
Ms Priya and her friends got a raise of 10% in their salaries. Find the total amount if their present salary is ₹15,000. Calculate the salary by using the formula.
Formula is =15000+(15000*10/100)
Formulas are used to perform Calculations.
The cell address in a formula is also called Cell reference.
The cell address in a formula that does not change on copying, is considered as Absolute reference.
Arguments are input to functions, which accept values as number or text.
The & character is used for concatenation of strings.
To use the Sheet reference, which address is appropriate out of the following options?
Which key combination is used to get the sum of the values of adjacent cells?
Which function finds the largest number in a range?
Which of the given cell references can be used in a relative reference?
Which function is used to count the number of numeric values in a range?
Formulas must begin with the question mark (?).
False
In Absolute Referencing, the relative position of rows and columns changes where you copy a formula.
False
In Absolute Referencing, '$' sign is used before the cell co-ordinates.
True
A range can be used in a formula.
True
The error #VALUE occurs if the number is divided by a zero.
False