Question

Guess the rule and write down the missing number: 1 5 6 11 _ 28

Answer 1

1 5 6 11 17 28

Explanation:

Answer 2

Hi there! :)

Answer:

17 is the missing number.

Explanation:

The rule is to add the previous two numbers together to get the next number. For example:

1 + 5 = 6

5 + 6 = 11

Using this rule to solve for the missing number gets us:

6 + 11 = 17

We can check this work as well:

11 + 17 = 28.

Therefore, 17 is the missing number.