Basic Math Examples

$90$ , $90$ , $95$ , $100$ , $80$ , $75$ , $80$ , $70$ , $60$ , $95$ , $100$ , $100$ , $100$ , $75$ , $80$ , $90$ , $90$ , $90$ , $70$ , $70$ , $80$ , $85$ , $90$ , $90$ , $85$

Step 1

The mean of a set of numbers is the sum divided by the number of terms.

$\frac{90 + 90 + 95 + 100 + 80 + 75 + 80 + 70 + 60 + 95 + 100 + 100 + 100 + 75 + 80 + 90 + 90 + 90 + 70 + 70 + 80 + 85 + 90 + 90 + 85}{25}$

Step 2

Cancel the common factor of $90 + 90 + 95 + 100 + 80 + 75 + 80 + 70 + 60 + 95 + 100 + 100 + 100 + 75 + 80 + 90 + 90 + 90 + 70 + 70 + 80 + 85 + 90 + 90 + 85$ and $25$ .

Tap for more steps...

Step 2.1

Factor $5$ out of $90$ .

$\frac{5 (18) + 90 + 95 + 100 + 80 + 75 + 80 + 70 + 60 + 95 + 100 + 100 + 100 + 75 + 80 + 90 + 90 + 90 + 70 + 70 + 80 + 85 + 90 + 90 + 85}{25}$

Step 2.2

Factor $5$ out of $90$ .

$\frac{5 \cdot 18 + 5 \cdot 18 + 95 + 100 + 80 + 75 + 80 + 70 + 60 + 95 + 100 + 100 + 100 + 75 + 80 + 90 + 90 + 90 + 70 + 70 + 80 + 85 + 90 + 90 + 85}{25}$

Step 2.3

Factor $5$ out of $5 \cdot 18 + 5 \cdot 18$ .

$\frac{5 \cdot (18 + 18) + 95 + 100 + 80 + 75 + 80 + 70 + 60 + 95 + 100 + 100 + 100 + 75 + 80 + 90 + 90 + 90 + 70 + 70 + 80 + 85 + 90 + 90 + 85}{25}$

Step 2.4

Factor $5$ out of $95$ .

$\frac{5 \cdot (18 + 18) + 5 (19) + 100 + 80 + 75 + 80 + 70 + 60 + 95 + 100 + 100 + 100 + 75 + 80 + 90 + 90 + 90 + 70 + 70 + 80 + 85 + 90 + 90 + 85}{25}$

Step 2.5

Factor $5$ out of $5 \cdot (18 + 18) + 5 (19)$ .

$\frac{5 \cdot (18 + 18 + 19) + 100 + 80 + 75 + 80 + 70 + 60 + 95 + 100 + 100 + 100 + 75 + 80 + 90 + 90 + 90 + 70 + 70 + 80 + 85 + 90 + 90 + 85}{25}$

Step 2.6

Factor $5$ out of $100$ .

$\frac{5 \cdot (18 + 18 + 19) + 5 (20) + 80 + 75 + 80 + 70 + 60 + 95 + 100 + 100 + 100 + 75 + 80 + 90 + 90 + 90 + 70 + 70 + 80 + 85 + 90 + 90 + 85}{25}$

Step 2.7

Factor $5$ out of $5 \cdot (18 + 18 + 19) + 5 (20)$ .

$\frac{5 \cdot (18 + 18 + 19 + 20) + 80 + 75 + 80 + 70 + 60 + 95 + 100 + 100 + 100 + 75 + 80 + 90 + 90 + 90 + 70 + 70 + 80 + 85 + 90 + 90 + 85}{25}$

Step 2.8

Factor $5$ out of $80$ .

$\frac{5 \cdot (18 + 18 + 19 + 20) + 5 (16) + 75 + 80 + 70 + 60 + 95 + 100 + 100 + 100 + 75 + 80 + 90 + 90 + 90 + 70 + 70 + 80 + 85 + 90 + 90 + 85}{25}$

Step 2.9

Factor $5$ out of $5 \cdot (18 + 18 + 19 + 20) + 5 (16)$ .

$\frac{5 \cdot (18 + 18 + 19 + 20 + 16) + 75 + 80 + 70 + 60 + 95 + 100 + 100 + 100 + 75 + 80 + 90 + 90 + 90 + 70 + 70 + 80 + 85 + 90 + 90 + 85}{25}$

Step 2.10

Factor $5$ out of $75$ .

$\frac{5 \cdot (18 + 18 + 19 + 20 + 16) + 5 (15) + 80 + 70 + 60 + 95 + 100 + 100 + 100 + 75 + 80 + 90 + 90 + 90 + 70 + 70 + 80 + 85 + 90 + 90 + 85}{25}$

Step 2.11

Factor $5$ out of $5 \cdot (18 + 18 + 19 + 20 + 16) + 5 (15)$ .

$\frac{5 \cdot (18 + 18 + 19 + 20 + 16 + 15) + 80 + 70 + 60 + 95 + 100 + 100 + 100 + 75 + 80 + 90 + 90 + 90 + 70 + 70 + 80 + 85 + 90 + 90 + 85}{25}$

Step 2.12

Factor $5$ out of $80$ .

$\frac{5 \cdot (18 + 18 + 19 + 20 + 16 + 15) + 5 (16) + 70 + 60 + 95 + 100 + 100 + 100 + 75 + 80 + 90 + 90 + 90 + 70 + 70 + 80 + 85 + 90 + 90 + 85}{25}$

Step 2.13

Factor $5$ out of $5 \cdot (18 + 18 + 19 + 20 + 16 + 15) + 5 (16)$ .

$\frac{5 \cdot (18 + 18 + 19 + 20 + 16 + 15 + 16) + 70 + 60 + 95 + 100 + 100 + 100 + 75 + 80 + 90 + 90 + 90 + 70 + 70 + 80 + 85 + 90 + 90 + 85}{25}$

Step 2.14

Factor $5$ out of $70$ .

$\frac{5 \cdot (18 + 18 + 19 + 20 + 16 + 15 + 16) + 5 (14) + 60 + 95 + 100 + 100 + 100 + 75 + 80 + 90 + 90 + 90 + 70 + 70 + 80 + 85 + 90 + 90 + 85}{25}$

Step 2.15

Factor $5$ out of $5 \cdot (18 + 18 + 19 + 20 + 16 + 15 + 16) + 5 (14)$ .

$\frac{5 \cdot (18 + 18 + 19 + 20 + 16 + 15 + 16 + 14) + 60 + 95 + 100 + 100 + 100 + 75 + 80 + 90 + 90 + 90 + 70 + 70 + 80 + 85 + 90 + 90 + 85}{25}$

Step 2.16

Factor $5$ out of $60$ .

$\frac{5 \cdot (18 + 18 + 19 + 20 + 16 + 15 + 16 + 14) + 5 (12) + 95 + 100 + 100 + 100 + 75 + 80 + 90 + 90 + 90 + 70 + 70 + 80 + 85 + 90 + 90 + 85}{25}$

Step 2.17

Factor $5$ out of $5 \cdot (18 + 18 + 19 + 20 + 16 + 15 + 16 + 14) + 5 (12)$ .

$\frac{5 \cdot (18 + 18 + 19 + 20 + 16 + 15 + 16 + 14 + 12) + 95 + 100 + 100 + 100 + 75 + 80 + 90 + 90 + 90 + 70 + 70 + 80 + 85 + 90 + 90 + 85}{25}$

Step 2.18

Factor $5$ out of $95$ .

$\frac{5 \cdot (18 + 18 + 19 + 20 + 16 + 15 + 16 + 14 + 12) + 5 (19) + 100 + 100 + 100 + 75 + 80 + 90 + 90 + 90 + 70 + 70 + 80 + 85 + 90 + 90 + 85}{25}$

Step 2.19

Factor $5$ out of $5 \cdot (18 + 18 + 19 + 20 + 16 + 15 + 16 + 14 + 12) + 5 (19)$ .

$\frac{5 \cdot (18 + 18 + 19 + 20 + 16 + 15 + 16 + 14 + 12 + 19) + 100 + 100 + 100 + 75 + 80 + 90 + 90 + 90 + 70 + 70 + 80 + 85 + 90 + 90 + 85}{25}$

Step 2.20

Factor $5$ out of $100$ .

$\frac{5 \cdot (18 + 18 + 19 + 20 + 16 + 15 + 16 + 14 + 12 + 19) + 5 (20) + 100 + 100 + 75 + 80 + 90 + 90 + 90 + 70 + 70 + 80 + 85 + 90 + 90 + 85}{25}$

Step 2.21

Factor $5$ out of $5 \cdot (18 + 18 + 19 + 20 + 16 + 15 + 16 + 14 + 12 + 19) + 5 (20)$ .

$\frac{5 \cdot (18 + 18 + 19 + 20 + 16 + 15 + 16 + 14 + 12 + 19 + 20) + 100 + 100 + 75 + 80 + 90 + 90 + 90 + 70 + 70 + 80 + 85 + 90 + 90 + 85}{25}$

Step 2.22

Factor $5$ out of $100$ .

$\frac{5 \cdot (18 + 18 + 19 + 20 + 16 + 15 + 16 + 14 + 12 + 19 + 20) + 5 (20) + 100 + 75 + 80 + 90 + 90 + 90 + 70 + 70 + 80 + 85 + 90 + 90 + 85}{25}$

Step 2.23

Factor $5$ out of $5 \cdot (18 + 18 + 19 + 20 + 16 + 15 + 16 + 14 + 12 + 19 + 20) + 5 (20)$ .

$\frac{5 \cdot (18 + 18 + 19 + 20 + 16 + 15 + 16 + 14 + 12 + 19 + 20 + 20) + 100 + 75 + 80 + 90 + 90 + 90 + 70 + 70 + 80 + 85 + 90 + 90 + 85}{25}$

Step 2.24

Factor $5$ out of $100$ .

$\frac{5 \cdot (18 + 18 + 19 + 20 + 16 + 15 + 16 + 14 + 12 + 19 + 20 + 20) + 5 (20) + 75 + 80 + 90 + 90 + 90 + 70 + 70 + 80 + 85 + 90 + 90 + 85}{25}$

Step 2.25

Factor $5$ out of $5 \cdot (18 + 18 + 19 + 20 + 16 + 15 + 16 + 14 + 12 + 19 + 20 + 20) + 5 (20)$ .

$\frac{5 \cdot (18 + 18 + 19 + 20 + 16 + 15 + 16 + 14 + 12 + 19 + 20 + 20 + 20) + 75 + 80 + 90 + 90 + 90 + 70 + 70 + 80 + 85 + 90 + 90 + 85}{25}$

Step 2.26

Factor $5$ out of $75$ .

$\frac{5 \cdot (18 + 18 + 19 + 20 + 16 + 15 + 16 + 14 + 12 + 19 + 20 + 20 + 20) + 5 (15) + 80 + 90 + 90 + 90 + 70 + 70 + 80 + 85 + 90 + 90 + 85}{25}$

Step 2.27

Factor $5$ out of $5 \cdot (18 + 18 + 19 + 20 + 16 + 15 + 16 + 14 + 12 + 19 + 20 + 20 + 20) + 5 (15)$ .

$\frac{5 \cdot (18 + 18 + 19 + 20 + 16 + 15 + 16 + 14 + 12 + 19 + 20 + 20 + 20 + 15) + 80 + 90 + 90 + 90 + 70 + 70 + 80 + 85 + 90 + 90 + 85}{25}$

Step 2.28

Factor $5$ out of $80$ .

$\frac{5 \cdot (18 + 18 + 19 + 20 + 16 + 15 + 16 + 14 + 12 + 19 + 20 + 20 + 20 + 15) + 5 (16) + 90 + 90 + 90 + 70 + 70 + 80 + 85 + 90 + 90 + 85}{25}$

Step 2.29

Factor $5$ out of $5 \cdot (18 + 18 + 19 + 20 + 16 + 15 + 16 + 14 + 12 + 19 + 20 + 20 + 20 + 15) + 5 (16)$ .

$\frac{5 \cdot (18 + 18 + 19 + 20 + 16 + 15 + 16 + 14 + 12 + 19 + 20 + 20 + 20 + 15 + 16) + 90 + 90 + 90 + 70 + 70 + 80 + 85 + 90 + 90 + 85}{25}$

Step 2.30

Factor $5$ out of $90$ .

$\frac{5 \cdot (18 + 18 + 19 + 20 + 16 + 15 + 16 + 14 + 12 + 19 + 20 + 20 + 20 + 15 + 16) + 5 (18) + 90 + 90 + 70 + 70 + 80 + 85 + 90 + 90 + 85}{25}$

Step 2.31

Factor $5$ out of $5 \cdot (18 + 18 + 19 + 20 + 16 + 15 + 16 + 14 + 12 + 19 + 20 + 20 + 20 + 15 + 16) + 5 (18)$ .

$\frac{5 \cdot (18 + 18 + 19 + 20 + 16 + 15 + 16 + 14 + 12 + 19 + 20 + 20 + 20 + 15 + 16 + 18) + 90 + 90 + 70 + 70 + 80 + 85 + 90 + 90 + 85}{25}$

Step 2.32

Factor $5$ out of $90$ .

$\frac{5 \cdot (18 + 18 + 19 + 20 + 16 + 15 + 16 + 14 + 12 + 19 + 20 + 20 + 20 + 15 + 16 + 18) + 5 (18) + 90 + 70 + 70 + 80 + 85 + 90 + 90 + 85}{25}$

Step 2.33

Factor $5$ out of $5 \cdot (18 + 18 + 19 + 20 + 16 + 15 + 16 + 14 + 12 + 19 + 20 + 20 + 20 + 15 + 16 + 18) + 5 (18)$ .

$\frac{5 \cdot (18 + 18 + 19 + 20 + 16 + 15 + 16 + 14 + 12 + 19 + 20 + 20 + 20 + 15 + 16 + 18 + 18) + 90 + 70 + 70 + 80 + 85 + 90 + 90 + 85}{25}$

Step 2.34

Factor $5$ out of $90$ .

$\frac{5 \cdot (18 + 18 + 19 + 20 + 16 + 15 + 16 + 14 + 12 + 19 + 20 + 20 + 20 + 15 + 16 + 18 + 18) + 5 (18) + 70 + 70 + 80 + 85 + 90 + 90 + 85}{25}$

Step 2.35

Factor $5$ out of $5 \cdot (18 + 18 + 19 + 20 + 16 + 15 + 16 + 14 + 12 + 19 + 20 + 20 + 20 + 15 + 16 + 18 + 18) + 5 (18)$ .

$\frac{5 \cdot (18 + 18 + 19 + 20 + 16 + 15 + 16 + 14 + 12 + 19 + 20 + 20 + 20 + 15 + 16 + 18 + 18 + 18) + 70 + 70 + 80 + 85 + 90 + 90 + 85}{25}$

Step 2.36

Factor $5$ out of $70$ .

$\frac{5 \cdot (18 + 18 + 19 + 20 + 16 + 15 + 16 + 14 + 12 + 19 + 20 + 20 + 20 + 15 + 16 + 18 + 18 + 18) + 5 (14) + 70 + 80 + 85 + 90 + 90 + 85}{25}$

Step 2.37

Factor $5$ out of $5 \cdot (18 + 18 + 19 + 20 + 16 + 15 + 16 + 14 + 12 + 19 + 20 + 20 + 20 + 15 + 16 + 18 + 18 + 18) + 5 (14)$ .

$\frac{5 \cdot (18 + 18 + 19 + 20 + 16 + 15 + 16 + 14 + 12 + 19 + 20 + 20 + 20 + 15 + 16 + 18 + 18 + 18 + 14) + 70 + 80 + 85 + 90 + 90 + 85}{25}$

Step 2.38

Factor $5$ out of $70$ .

$\frac{5 \cdot (18 + 18 + 19 + 20 + 16 + 15 + 16 + 14 + 12 + 19 + 20 + 20 + 20 + 15 + 16 + 18 + 18 + 18 + 14) + 5 (14) + 80 + 85 + 90 + 90 + 85}{25}$

Step 2.39

Factor $5$ out of $5 \cdot (18 + 18 + 19 + 20 + 16 + 15 + 16 + 14 + 12 + 19 + 20 + 20 + 20 + 15 + 16 + 18 + 18 + 18 + 14) + 5 (14)$ .

$\frac{5 \cdot (18 + 18 + 19 + 20 + 16 + 15 + 16 + 14 + 12 + 19 + 20 + 20 + 20 + 15 + 16 + 18 + 18 + 18 + 14 + 14) + 80 + 85 + 90 + 90 + 85}{25}$

Step 2.40

Factor $5$ out of $80$ .

$\frac{5 \cdot (18 + 18 + 19 + 20 + 16 + 15 + 16 + 14 + 12 + 19 + 20 + 20 + 20 + 15 + 16 + 18 + 18 + 18 + 14 + 14) + 5 (16) + 85 + 90 + 90 + 85}{25}$

Step 2.41

Factor $5$ out of $5 \cdot (18 + 18 + 19 + 20 + 16 + 15 + 16 + 14 + 12 + 19 + 20 + 20 + 20 + 15 + 16 + 18 + 18 + 18 + 14 + 14) + 5 (16)$ .

$\frac{5 \cdot (18 + 18 + 19 + 20 + 16 + 15 + 16 + 14 + 12 + 19 + 20 + 20 + 20 + 15 + 16 + 18 + 18 + 18 + 14 + 14 + 16) + 85 + 90 + 90 + 85}{25}$

Step 2.42

Factor $5$ out of $85$ .

$\frac{5 \cdot (18 + 18 + 19 + 20 + 16 + 15 + 16 + 14 + 12 + 19 + 20 + 20 + 20 + 15 + 16 + 18 + 18 + 18 + 14 + 14 + 16) + 5 (17) + 90 + 90 + 85}{25}$

Step 2.43

Factor $5$ out of $5 \cdot (18 + 18 + 19 + 20 + 16 + 15 + 16 + 14 + 12 + 19 + 20 + 20 + 20 + 15 + 16 + 18 + 18 + 18 + 14 + 14 + 16) + 5 (17)$ .

$\frac{5 \cdot (18 + 18 + 19 + 20 + 16 + 15 + 16 + 14 + 12 + 19 + 20 + 20 + 20 + 15 + 16 + 18 + 18 + 18 + 14 + 14 + 16 + 17) + 90 + 90 + 85}{25}$

Step 2.44

Factor $5$ out of $90$ .

$\frac{5 \cdot (18 + 18 + 19 + 20 + 16 + 15 + 16 + 14 + 12 + 19 + 20 + 20 + 20 + 15 + 16 + 18 + 18 + 18 + 14 + 14 + 16 + 17) + 5 (18) + 90 + 85}{25}$

Step 2.45

Factor $5$ out of $5 \cdot (18 + 18 + 19 + 20 + 16 + 15 + 16 + 14 + 12 + 19 + 20 + 20 + 20 + 15 + 16 + 18 + 18 + 18 + 14 + 14 + 16 + 17) + 5 (18)$ .

$\frac{5 \cdot (18 + 18 + 19 + 20 + 16 + 15 + 16 + 14 + 12 + 19 + 20 + 20 + 20 + 15 + 16 + 18 + 18 + 18 + 14 + 14 + 16 + 17 + 18) + 90 + 85}{25}$

Step 2.46

Factor $5$ out of $90$ .

$\frac{5 \cdot (18 + 18 + 19 + 20 + 16 + 15 + 16 + 14 + 12 + 19 + 20 + 20 + 20 + 15 + 16 + 18 + 18 + 18 + 14 + 14 + 16 + 17 + 18) + 5 (18) + 85}{25}$

Step 2.47

Factor $5$ out of $5 \cdot (18 + 18 + 19 + 20 + 16 + 15 + 16 + 14 + 12 + 19 + 20 + 20 + 20 + 15 + 16 + 18 + 18 + 18 + 14 + 14 + 16 + 17 + 18) + 5 (18)$ .

$\frac{5 \cdot (18 + 18 + 19 + 20 + 16 + 15 + 16 + 14 + 12 + 19 + 20 + 20 + 20 + 15 + 16 + 18 + 18 + 18 + 14 + 14 + 16 + 17 + 18 + 18) + 85}{25}$

Step 2.48

Factor $5$ out of $85$ .

$\frac{5 \cdot (18 + 18 + 19 + 20 + 16 + 15 + 16 + 14 + 12 + 19 + 20 + 20 + 20 + 15 + 16 + 18 + 18 + 18 + 14 + 14 + 16 + 17 + 18 + 18) + 5 (17)}{25}$

Step 2.49

Factor $5$ out of $5 \cdot (18 + 18 + 19 + 20 + 16 + 15 + 16 + 14 + 12 + 19 + 20 + 20 + 20 + 15 + 16 + 18 + 18 + 18 + 14 + 14 + 16 + 17 + 18 + 18) + 5 (17)$ .

$\frac{5 \cdot (18 + 18 + 19 + 20 + 16 + 15 + 16 + 14 + 12 + 19 + 20 + 20 + 20 + 15 + 16 + 18 + 18 + 18 + 14 + 14 + 16 + 17 + 18 + 18 + 17)}{25}$

Step 2.50

Cancel the common factors.

Tap for more steps...

Step 2.50.1

Factor $5$ out of $25$ .

$\frac{5 \cdot (18 + 18 + 19 + 20 + 16 + 15 + 16 + 14 + 12 + 19 + 20 + 20 + 20 + 15 + 16 + 18 + 18 + 18 + 14 + 14 + 16 + 17 + 18 + 18 + 17)}{5 (5)}$

Step 2.50.2

Cancel the common factor.

$\frac{5 \cdot (18 + 18 + 19 + 20 + 16 + 15 + 16 + 14 + 12 + 19 + 20 + 20 + 20 + 15 + 16 + 18 + 18 + 18 + 14 + 14 + 16 + 17 + 18 + 18 + 17)}{5 \cdot 5}$

Step 2.50.3

Rewrite the expression.

$\frac{18 + 18 + 19 + 20 + 16 + 15 + 16 + 14 + 12 + 19 + 20 + 20 + 20 + 15 + 16 + 18 + 18 + 18 + 14 + 14 + 16 + 17 + 18 + 18 + 17}{5}$

Step 3

Simplify the numerator.

Tap for more steps...

Step 3.1

Add $18$ and $18$ .

$\frac{36 + 19 + 20 + 16 + 15 + 16 + 14 + 12 + 19 + 20 + 20 + 20 + 15 + 16 + 18 + 18 + 18 + 14 + 14 + 16 + 17 + 18 + 18 + 17}{5}$

Step 3.2

Add $36$ and $19$ .

$\frac{55 + 20 + 16 + 15 + 16 + 14 + 12 + 19 + 20 + 20 + 20 + 15 + 16 + 18 + 18 + 18 + 14 + 14 + 16 + 17 + 18 + 18 + 17}{5}$

Step 3.3

Add $55$ and $20$ .

$\frac{75 + 16 + 15 + 16 + 14 + 12 + 19 + 20 + 20 + 20 + 15 + 16 + 18 + 18 + 18 + 14 + 14 + 16 + 17 + 18 + 18 + 17}{5}$

Step 3.4

Add $75$ and $16$ .

$\frac{91 + 15 + 16 + 14 + 12 + 19 + 20 + 20 + 20 + 15 + 16 + 18 + 18 + 18 + 14 + 14 + 16 + 17 + 18 + 18 + 17}{5}$

Step 3.5

Add $91$ and $15$ .

$\frac{106 + 16 + 14 + 12 + 19 + 20 + 20 + 20 + 15 + 16 + 18 + 18 + 18 + 14 + 14 + 16 + 17 + 18 + 18 + 17}{5}$

Step 3.6

Add $106$ and $16$ .

$\frac{122 + 14 + 12 + 19 + 20 + 20 + 20 + 15 + 16 + 18 + 18 + 18 + 14 + 14 + 16 + 17 + 18 + 18 + 17}{5}$

Step 3.7

Add $122$ and $14$ .

$\frac{136 + 12 + 19 + 20 + 20 + 20 + 15 + 16 + 18 + 18 + 18 + 14 + 14 + 16 + 17 + 18 + 18 + 17}{5}$

Step 3.8

Add $136$ and $12$ .

$\frac{148 + 19 + 20 + 20 + 20 + 15 + 16 + 18 + 18 + 18 + 14 + 14 + 16 + 17 + 18 + 18 + 17}{5}$

Step 3.9

Add $148$ and $19$ .

$\frac{167 + 20 + 20 + 20 + 15 + 16 + 18 + 18 + 18 + 14 + 14 + 16 + 17 + 18 + 18 + 17}{5}$

Step 3.10

Add $167$ and $20$ .

$\frac{187 + 20 + 20 + 15 + 16 + 18 + 18 + 18 + 14 + 14 + 16 + 17 + 18 + 18 + 17}{5}$

Step 3.11

Add $187$ and $20$ .

$\frac{207 + 20 + 15 + 16 + 18 + 18 + 18 + 14 + 14 + 16 + 17 + 18 + 18 + 17}{5}$

Step 3.12

Add $207$ and $20$ .

$\frac{227 + 15 + 16 + 18 + 18 + 18 + 14 + 14 + 16 + 17 + 18 + 18 + 17}{5}$

Step 3.13

Add $227$ and $15$ .

$\frac{242 + 16 + 18 + 18 + 18 + 14 + 14 + 16 + 17 + 18 + 18 + 17}{5}$

Step 3.14

Add $242$ and $16$ .

$\frac{258 + 18 + 18 + 18 + 14 + 14 + 16 + 17 + 18 + 18 + 17}{5}$

Step 3.15

Add $258$ and $18$ .

$\frac{276 + 18 + 18 + 14 + 14 + 16 + 17 + 18 + 18 + 17}{5}$

Step 3.16

Add $276$ and $18$ .

$\frac{294 + 18 + 14 + 14 + 16 + 17 + 18 + 18 + 17}{5}$

Step 3.17

Add $294$ and $18$ .

$\frac{312 + 14 + 14 + 16 + 17 + 18 + 18 + 17}{5}$

Step 3.18

Add $312$ and $14$ .

$\frac{326 + 14 + 16 + 17 + 18 + 18 + 17}{5}$

Step 3.19

Add $326$ and $14$ .

$\frac{340 + 16 + 17 + 18 + 18 + 17}{5}$

Step 3.20

Add $340$ and $16$ .

$\frac{356 + 17 + 18 + 18 + 17}{5}$

Step 3.21

Add $356$ and $17$ .

$\frac{373 + 18 + 18 + 17}{5}$

Step 3.22

Add $373$ and $18$ .

$\frac{391 + 18 + 17}{5}$

Step 3.23

Add $391$ and $18$ .

$\frac{409 + 17}{5}$

Step 3.24

Add $409$ and $17$ .

$\frac{426}{5}$

Step 4

Divide.

$85.2$