Basic Math Examples

90

$90$ ,

$95$ ,

$100$ ,

$80$ ,

$75$ ,

$80$ ,

$70$ ,

$60$ ,

$95$ ,

$100$ ,

$75$ ,

$80$ ,

$90$ ,

$70$ ,

$80$ ,

$85$ ,

$90$ ,

$85$

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

$25$ .

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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.

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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.

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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.

$85.2$