Math question?

Question

What ways can you equal the number 13???

Like 12 + 1 = 13

Answer 1

Do you mean like:

12 + 1 = 13
11 + 2 = 13
10 + 3 = 13
9 + 4 = 13
8 + 5 = 13
7 + 6 = 13
14 - 1 = 13
15 - 2 = 13
16 - 3 = 13
17 - 4 = 13
18 - 5 = 13
19 - 6 = 13
1 * 13 = 13
26/2 = 13
39/3 = 13
sqrt 169 = 13

There are an infinite number of combinations.
including the cube root of (2210-13) = 13
1234567 - 1234554 = 13
4! - 11 = 13
how complecated do you want?

Answer 2

1. Addition Form (same as Subtraction)

a + b = 13

For example,

12 + 1 = 13

14 + (-1) = 13

27 - 14 = 13


2. Multiplication Form (same as Division)

a x b = 13

For example,

1 x 13 = 13

1/2 x 26 = 13


3. Power form (same as roots)

a^b = 13

13^1 = 13

169^(1/2) = 13


4. Factor form (expansion of multiplication form)

(a - b)(c - d) = 13

For example,

(14 - 13)(15 - 2) = 13


5. Summation form

a + b + c + .... = 13

For example,

1 + 3 + 4 + 5 = 13


As you can see there are infinite ways to get 13.

But one easy way is to deal a pack of playing cards to 4 players.

Answer 3

You really need to clarify what you are asking for in this question. As it is stated, there are infinitely many ways to obtain the number 13 using any combination of numbers and operations.

Answer 4

lots of ways!

1 * 13

1 + 12
6 + 7

26 / 2

15 - 2

Answer 5

there so many ways to get the answer 13.It can be in multiplication: 13x1=13;it can be in division:26/2=13...its your own ways either the equation is multiplication then you answer it in multiplication.

Answer 6

14 - 1
12 + 1
13 + 0
13 x 1
11 + ... ok im bored

Answer 7

d/dx 13x

13 + 0

Answer 8

13x1
13/1
12+1
14-1
15-2
16-3
17-4 and so on
1+12
2+11
3+10
4+9
5+8
6+7
and you can go with negatives, and so on.........................................................
26/2
sqr. root of 169
etc.