There are infinitely many possible additions:
10+11, 9+12, 8+13, 7+14, ....
and then
10.5+10.5, 10.4+10.6, 10.3+10.7, 10.2+10.8, ....
and then 2 digit
10.49 + 10.51, 10.48+10.52, ...
and 3 digit, 4 digit, ... infinitely many digits.
Next, you can look at multiplication:
1x21, 2x10.5, 3x7, and so on
and then 0.1x210, 0.2*105, 0.3*70 and so on
and then 2 digit decimals fractions, and then 3 digit, 4 digit, and so on, and on.
And I have not even started on 3 or more numbers, or powers and other mathematical functions.
21 ways
The number of ways to make 21 depends on the context, such as whether you are referring to combinations of numbers, coins, or other items. For instance, if using coins of different denominations, the number of combinations can vary based on the denominations available. In mathematics, particularly in combinatorics, generating functions or partition functions can be used to calculate the number of ways to express 21 as a sum of integers. If you specify the context or constraints, I can provide a more precise answer.
1 21 7 3 are the factors
1 x 21 3 x 7
3
21 ways
21 ways
21 ways.
You cant unless you have 100 pennies.
to make 21 cents there are many ways 21 pennies 2 two dims and 1 penny 3 4 nickels and 1 penny 4 1 dim 2 nickels and 1 penny
There are many ways. One such is 21, 30, 45, 69, 78
1 21 7 3 are the factors
1 x 21 3 x 7
Marianne Ways was born on March 21, 1980.
Good Ways was created on 1998-12-21.
3
42 x 1 21 x 2 14 x 3 7 x 6