Arithmetic Means

Insert two arithmetic means between 30 and 48

• 35, 41

• 36, 42

• 37, 43

• 38, 44

What is the arithmetic mean between 9 and -3 ?

• 3

• -3

• 6

• -6

Insert three arithmetic means between 22 and 42.

• 24, 29 34

• 25, 30, 35

• 26, 31, 36

• 27, 32, 37

What is the missing term in 21, _______, 47?

• 32

• 33

• 34

• 35

What is the arithmetic mean between 2x + 3y and 2x – 5y ?

• x + y

• x - y

• 2x + y

• 2x – y

Insert five terms between 1.5 and 13.5

• 3.5, 5.5, 7.5, 11.5

• 2.5, 4.5, 6.5, 10.5

• 1.5, 3.5, 5.5, 9.5

• 0.5, 2.5, 4.5, 8.5

• 0

• 1

• 2

What is the arithmetic mean between 6.5 and 17.9 ?

• 12.2

• 11.2

• 10.2

• 9.2

Find the missing term in an arithmetic sequence

1, _______, 7, _______, 13

• 4; 9

• 2 ; 11

• 3; 9

• 4; 10

Find the missing term in an arithmetic sequence _______, -1, _______, 3, 5.

• 0 ; 1

• -2 ; 1

• -2, 0

• -3 ; 1