Joshua received the following scores on his Math tests: 80, 84, 100, 80, 70, 100, 60, 70. Find his mean score.

Add the scores and divide by the number of scores.

80 + 84 + 100 + 80 + 70 + 100 + 60 + 70 = total
mean = total/8

To find Joshua's mean score, follow these steps:

Step 1: Add up the scores.
80 + 84 + 100 + 80 + 70 + 100 + 60 + 70 = 644

Step 2: Divide the sum by the number of scores.
644 ÷ 8 = 80.5

Therefore, Joshua's mean score is 80.5.

To find the mean score, you need to add up all the scores Joshua received and divide the sum by the total number of scores. Let's calculate it step by step:

1. Add up all the scores: 80 + 84 + 100 + 80 + 70 + 100 + 60 + 70 = 644.
2. Count the total number of scores, which is 8.
3. Divide the sum of the scores by the total number of scores: 644 ÷ 8 = 80.5.

So, Joshua's mean score is 80.5.