The answer of this will be [tex]6[/tex] .
What are Addition and Subtraction?
Addition is a mathematical operation that represents combining objects t into a larger collection. It is signified by the plus sign (+). Subtraction is a mathematical operation that represents process of finding the difference between numbers or quantities. It is signified by the minus sign (-)
We have,
In first line, we have
Two Red pencil [tex]+[/tex] One Red And Blue Pencil [tex]=21[/tex] [tex].........[/tex] First Row
Red pencil [tex]-[/tex] Blue pencil [tex]=3[/tex] [tex].........[/tex] Second Row
Red Pencil and Blue Pencil [tex]= 15[/tex] [tex].........[/tex] Third Row
Blue Pencil [tex]+[/tex] Blue Pencil [tex]= \ ?[/tex] [tex].........[/tex] Fourth row
We have,
From Second row ,
We will choose two numbers which have difference of [tex]3[/tex],
Let, [tex]6[/tex] and [tex]3[/tex]
i.e.
Red Pencil [tex]= 6[/tex]
Blue Pencil [tex]= 3[/tex]
So,
Red pencil [tex]-[/tex] Blue pencil [tex]=3[/tex]
[tex]6-3=3[/tex]
It means that the numbers we choose are best fir for the values of pencils.
Now, Put values of these pencil in Fourth row,
Blue Pencil [tex]+[/tex] Blue Pencil [tex]= \ ?[/tex]
[tex]3+3=6[/tex]
So, the values of the the Two blue Pencil will be [tex]6[/tex].
Hence, we can say that the answer of this will be [tex]6[/tex] . .
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