Question

fill in the missing numbers to complete the pattern:
6.90, , 7.30, 7.50, , 7.90

Explanation:

Step1: Find the common difference

To find the pattern, calculate the difference between consecutive given numbers. Let's take \(7.50 - 7.30 = 0.20\) and \(7.30 - 6.90 = 0.40\), but since there's one number in between \(6.90\) and \(7.30\), the common difference should be \(0.20\) (because \(0.40\div2 = 0.20\)). So the pattern is adding \(0.20\) to the previous number.

Step2: Find the first missing number

To find the first missing number, add \(0.20\) to \(6.90\). So, \(6.90+ 0.20=7.10\).

Step3: Find the second missing number

To find the second missing number, add \(0.20\) to \(7.50\). So, \(7.50 + 0.20 = 7.70\).

Answer:

The missing numbers are \(7.10\) and \(7.70\). So the sequence is \(6.90, 7.10, 7.30, 7.50, 7.70, 7.90\).