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Gaurav Seth 5 years, 1 month ago
- Decide which is the last digit to keep
- Leave it the same if the next digit is less than 5 (this is called <i>rounding down</i>)
- But increase it by 1 if the next digit is 5 or more (this is called <i>rounding up</i>)
Example: Round 74 to the nearest 10
- We want to keep the "7" (it is in the 10s position)
- The next digit is "4" which is less than 5, so no change is needed to "7"
Answer: 70
(74 gets "rounded down")
Example: Round 86 to the nearest 10
- We want to keep the "8"
- The next digit is "6" which is 5 or more, so increase the "8" by 1 to "9"
Answer: 90
(86 gets "rounded up")
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Gaurav Seth 5 years, 1 month ago
 |
= | mean |
From the web
The mean is the average of the numbers. It is easy to calculate: add up all the numbers, then divide by how many numbers there are. In other words it is the sum divided by the count.
Posted by Ragini Chhari 5 years, 1 month ago
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Soumyashree Paital 5 years, 1 month ago
Gaurav Seth 5 years, 1 month ago
9,18,27,36,45,54,63,72,81,90..... ...
First of all you need to know what are multiples.....
Multiple: Multiples of a no are the nos which are divisible by the no.
So multiples of 9 are:
9,18,27,36,45,54,63,72,81,90,........... Many more nos which are divisible by 9.
Yogita Ingle 5 years, 1 month ago
Any number that can be denoted in the form 9n where n is a natural number is a multiple of 9. So if two values p and q are there, we say that q is a multiple of p if q = np.
For example, 9, 16, 900 and 99 are all multiples of 9 for the following reasons
| 81 | = | 9 | x | 9 |
| 18 | = | 9 | x | 2 |
| 900 | = | 9 | x | 100 |
| 99 | = | 9 | x | 11 |
These values are called as multiples as these values are obtained by adding or subtracting original value many times.
The multiples of 9
| Multiplication: | Multiples of 9: |
| 9 x 1 | 9 |
| 9 x 2 | 18 |
| 9 x 3 | 27 |
| 9 x 4 | 36 |
| 9 x 5 | 45 |
| 9 x 6 | 54 |
| 9 x 7 | 63 |
| 9 x 8 | 72 |
| 9 x 9 | 81 |
| 9 x 10 | 90 |
| 9 x 11 | 99 |
| 9 x 12 | 108 |
| 9 x 13 | 117 |
| 9 x 14 | 126 |
| 9 x 15 | 135 |
| 9 x 16 | 144 |
| 9 x 17 | 153 |
| 9 x 18 | 162 |
| 9 x 19 | 171 |
| 9 x 20 | 180 |
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Yogita Ingle 5 years, 1 month ago
Sum of 3.25g and 32.507g
3.025g
32.507g
____________
35.532
So, Sum of 3.25g and 32.507g is 35.532g
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Soumyashree Paital 5 years, 1 month ago
1Thank You