It is already written in decimal form.
0.49
Expressed as a surd, the square root of 490 is equal to 7 root 10. Rounded to two decimal places, this is equal to 22.14.
90% of 490 = 90% * 490 = 0.9 * 490 = 441
25% of 490= 25% * 490= 0.25 * 490= 122.5
60% of 490= 60% * 490= 0.6 * 490= 29460% of 490.00 is 294.00
0.49
Expressed as a surd, the square root of 490 is equal to 7 root 10. Rounded to two decimal places, this is equal to 22.14.
To multiply a whole number by 100, add two zeros to the right. For example, 54 x 100 = 5400. To multiply any decimal number by 100, move the decimal point two positions to the right. For example, 4.1178 x 100 = 411.78, and 4.9 x 100 = 490. Note that in the last example I filled out missing digits with zero. Also note that 490 is the same as 490.0, so you can assume that in 490 there is an implicit decimal point to the right of the number.
490 = 490
490
25% of 490= 25% * 490= 0.25 * 490= 122.5
90% of 490 = 90% * 490 = 0.9 * 490 = 441
60% of 490= 60% * 490= 0.6 * 490= 29460% of 490.00 is 294.00
490
490% = 490/100 = 49/10
49 x 10 = 490 7 x 70 = 490 98 x 5 = 490 2 x 245 = 490
(490-450) or 40, is 8.16% of 490.