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प्रश्न
Solve:
9 x 9 + 7 = 88
98 x 9 + 6 = 888
987 x 9 + 5 = 8888
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उत्तर
9 x 9 + 7 = 88
98 x 9 + 6 = 888
987 x 9 + 5 = 8888
9876 x 9 + 4 = 88888
98765 x 9 + 3 = 888888
987654 x 9 + 2 = 8888888
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संबंधित प्रश्न
Fill in the blank:
a + (b + c) = (a + _____ ) + c
By re-arranging the given numbers evaluate :
21 + 22 + 23 + 24 + 25 + 75 + 76 + 77 + 78 + 79
State True or False:
The sum of two even numbers is an odd number.
State True or False:
The sum of an even number and an odd number is odd number.
Fill in the blanks :
83 x 54 + 83 x 16 = 83 x ( _______ ) = 83 x ______ = _________.
Use distributive law to evaluate :
385 x 1004
Evaluate using properties :
333 x 987 + 13 x 3333
See the following pattern carefully:

- If n denotes the number of figures and S denotes the number of matches; find S in terms of n.
- Find how many matches are required to make the :
(1) 15th figure
(2) 40th figure - Write a discretion of the pattern in words.
Natural numbers are closed under subtraction.
The HCF of two or more given numbers is the highest of their common _____.
