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S.chand books class 8 maths solution chapter 5 playing with numbers exercise 5C

EXERCISE 5 C


Question 1

Replace each letter W the correct numeral.


(i)

\begin{array}{cc}\phantom{+}4~A~7~2\\ \phantom{+}B~8~5~C\\+9~2~D~6\\\overline{E~7~7~7~5} \end{array}


(ii)

\begin{array}{rrrrr}\phantom{+}~A~~2~~4~~2\\\underline{+5~~2~B~~7}\\1~C~D~E \end{array}


(iii)

\begin{array}{rrrrrr}\phantom{+}~1~2~A\\+~B~1~5\\\hline C~2~5\\D~E~F~0\\2~G~0~~0~~0\\\hline H~6~8~K~J \end{array}


(iv)

\begin{array}{rrr}37\overline{)\phantom{,}A~5~1}\\\underline{-7~4~0}\\\phantom{,}1~CD\\\underline{-E~FG}\\0\end{array}


Question 2

What should come in place of the question mark(?) in the following number series ?

(i) 563 , 582 , 620 , 677 , 753 , 848 ?
(ii) 17 , 17 , 51 , 255 , 1785 , 16065 ?


 

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