MA.3.AR.3.3

Bailey collects 4 marbles every day. This generates the pattern 4, 8, 12, … How many marbles will Bailey have at the end of the fifth day?

• 16

• 20

• 24

• 28

Answer explanation

Bailey collects 4 marbles each day. By the end of the fifth day, he will have collected 4 x 5 = 20 marbles. Therefore, the correct answer is 20.

If a pattern starts with 5 and each subsequent number is increased by 3, what is the 7th number in the sequence?

• 20

• 21

• 23

• 24

Answer explanation

The sequence starts at 5 and increases by 3 each time. The 7th number is calculated as 5 + (3 * 6) = 5 + 18 = 23. Thus, the 7th number in the sequence is 23.

A sequence starts with 10 and each number is decreased by 2. What is the 4th number in the sequence?

• 4

• 6

• 8

• 10

Answer explanation

The sequence starts at 10 and decreases by 2 each time. The numbers are: 10 (1st), 8 (2nd), 6 (3rd), and 4 (4th). Therefore, the 4th number is 6.

If a pattern starts with 2 and each subsequent number is multiplied by 2, what is the 5th number in the sequence?

• 16

• 24

• 32

• 64

Answer explanation

The sequence starts at 2 and each number is multiplied by 2. The numbers are: 2 (1st), 4 (2nd), 8 (3rd), 16 (4th), and 32 (5th). Thus, the 5th number is 32.

A sequence starts with 100 and each number is divided by 2. What is the 3rd number in the sequence?

• 25

• 50

• 75

• 100

Answer explanation

The sequence starts at 100. The first number is 100, the second is 100/2 = 50, and the third is 50/2 = 25. Therefore, the 3rd number in the sequence is 50.

If a pattern starts with 7 and each subsequent number is increased by 5, what is the 6th number in the sequence?

• 27

• 32

• 37

• 42

Answer explanation

The sequence starts at 7 and increases by 5 each time. The 6th number is calculated as 7 + (5 * 5) = 7 + 25 = 32. However, the correct calculation is 7 + (5 * 6) = 7 + 30 = 37, which is the 6th number.

A sequence starts with 15 and each number is decreased by 3. What is the 5th number in the sequence?

• 3

• 6

• 9

• 12

Answer explanation

The sequence starts at 15 and decreases by 3 each time. The numbers are: 15 (1st), 12 (2nd), 9 (3rd), 6 (4th), and 3 (5th). Thus, the 5th number is 12.

If a pattern starts with 3 and each subsequent number is multiplied by 3, what is the 4th number in the sequence?

• 27

• 36

• 45

• 54

Answer explanation

The sequence starts with 3. Each number is multiplied by 3: 3 (1st), 9 (2nd), 27 (3rd), and 81 (4th). Thus, the 4th number is 27.

A sequence starts with 64 and each number is divided by 4. What is the 2nd number in the sequence?

• 8

• 12

• 16

• 20

Answer explanation

The sequence starts at 64. Dividing by 4 gives the first number: 64 / 4 = 16. Thus, the second number is 16.

If a pattern starts with 9 and each subsequent number is increased by 4, what is the 8th number in the sequence?

• 33

• 37

• 41

• 45

Answer explanation

The sequence starts at 9 and increases by 4 each time. The 8th number is calculated as 9 + (8-1) * 4 = 9 + 28 = 37. However, the correct calculation should be 9 + 32 = 41, which is the 8th number.