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Mathematics

Grade-2

Easy

Question

Linda signed up for a reading challenge. She had to read 75 books in one month. She read 20 books in the first week and 24 books in the second week. How many more books does Linda need to read to complete her challenge?

31
35
51
55

The correct answer is: 31

$31 space i s space t h e space c o r r e c t space c h o i c e space S h e space h a d space t o space r e a d space 75 space b o o k s space i n space o n e space m o n t h S h e space r e a d space 20 space b o o k s space i n space t h e space f i r s t space w e e k space a n d space 24 space b o o k s space i n space t h e space s e c o n d space w e e k s o space t o t a l space b o o k space s h e space r e a d space t i l l space n o w space equals space 20 space plus space 24 space equals space 44 l e f t space b o o k space l i n d a space n e e d space t o space r e a d space equals space t o t a l space b o o k space minus space space t o t a l space b o o k space s h e space r e a d l e f t space b o o k space l i n d a space n e e d space t o space r e a d space equals 75 space minus 44 space equals space 31 space i s space t h e space a n s w e r$
second method :
Step 1:
75 = 20 + ?
75 = 20 + 55
Step 2:
55 = 24 + ?
55 = 24 + 31
So, Linda needs to read 31 more books to complete the challenge.

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