Advertisements
Advertisements
प्रश्न
Write the digits 0, 1, 2, 3, ..., 9 in this order and insert ‘+’ or ‘–’ between them to get the result 3.
उत्तर
Given digits are 0, 1, 2, 3, 4, 5, 6, 7, 8 and 9.
To get sum 3,
0 + 1 + 2 + 3 – 4 + 5 + 6 + 7 – 8 – 9 = 1 + 2 + 3 + 5 + 6 + 7 – (4 + 8 + 9)
= 24 – 21
= 3
APPEARS IN
संबंधित प्रश्न
Fill in the blank:
Smallest whole number is _________
Fill in the blank :
42 x 0 =_____
Write the successor of: 687890
Zero is the smallest natural number.
Write (T) for true and (F) for false against the following statement:
7000 is the successor of 6999.
Complete the following magic square by supplying the missing numbers:
| 9 | 2 | |
| 5 | ||
| 8 |
Replace each * by the correct digit in the following:
\[\begin{array}{r}
&\texttt{6 1 7 2}\\
-&\texttt{* * 6 9}\\
\hline
&\texttt{2 9 * *}
\end{array}\]
Replace each * by the correct digit in the following:
\[\begin{array}{r}
&\texttt{1 0 0 0 0 0 0}\\
-&\texttt{* * * * 1}\\
\hline
&\texttt{* 7 0 4 2 *}\\
\hline
\end{array}\]
Mrs Saxena withdrew Rs 100000 from her bank account. She purchased a TV set for Rs 38750, a refrigerator for Rs 23890 and jewellery worth Rs 35560. How much money was left with her?
Fill in the blanks to make the following a true statement:
246 × 1 = ......
Find the product of the largest 3-digit number and the largest 5-digit number.
Divide and check your answer by the corresponding multiplication in the following:
19881 ÷ 47
The product of two numbers is 504347. If one of the numbers is 317, find the other.
The sum of two odd numbers is
The cost price of 23 TV sets is Rs 570055. Find the cost of each such set.
Fill in the blanks.
Division by ...... is not defined.
Write 'T' for true and 'F' for false for the following:
Every whole number is a natural number.
Sum of the number of primes between 16 to 80 and 90 to 100 is ______.
LCM of two or more numbers is divisible by their HCF.
