2.5000 has five significant digits and 104 has three significant digits. Therefore, the product should have three significant digits, and the answer is "260.". Note that the zero has to be made significant, so a decimal point is needed after the zero or you could put a vinculum (horizontal line) above the zero.
Let the required number be y. According to question: 33 x y = 25000 y = 25000/33 = 757.5757 So, the required number is 757.5757
A simple calculator will solve this, but if you don't have one on hand, just remember what division represents: it is the number of times the divisor (in this case) goes into the dividend. This number is called the quotient. Look to see how many times 25 goes into 25000. 25 goes into 25000 a total of 1000 times. Also see if this makes sense: 25 x 1000 = 25000 means that 25000/25 = 1000 (or 25000/1000 = 25)
The number is 45. The sum of its digits i.e. 4+5=9 Five times the sum of its digits i.e. 5 times 9 which is 45
125000
400000
When using significant digits, the product has only the number of significant digits as the lowest number in the factors. "20" has two significant digits and "310" has three. Therefore, the product has to have two significant digits. 310 × 20 = 6200 6200 already has two significant digits.
0.31, to the justified number of significant digits.
6 significant digits.
4.11, to the justified number of significant digits.
7200, to the justified number of significant digits.
There are 3 significant digits; the number can be expressed as 9.09 times ten to the minus third power.
3.2 X 10-6, to the justified number of significant digits.
Let the required number be y. According to question: 33 x y = 25000 y = 25000/33 = 757.5757 So, the required number is 757.5757
A simple calculator will solve this, but if you don't have one on hand, just remember what division represents: it is the number of times the divisor (in this case) goes into the dividend. This number is called the quotient. Look to see how many times 25 goes into 25000. 25 goes into 25000 a total of 1000 times. Also see if this makes sense: 25 x 1000 = 25000 means that 25000/25 = 1000 (or 25000/1000 = 25)
The number is 45. The sum of its digits i.e. 4+5=9 Five times the sum of its digits i.e. 5 times 9 which is 45
2.5*1000
Count the significant digits in each of the factors, and take the smallest of them.