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Alternating Series - Intermediate Level: tricky scenarios handling Alternating Series INTERMEDIATE

This expert challenge 📈 worksheet focuses on Alternating Series - a key topic in Number Series. You'll solve 20 intermediate-level problems (Worksheet 5 of 10). The primary focus is on tricky scenarios handling. Master how to solve alternating series, alternating series tricks, and alternating series shortcut methods through systematic practice.

📝 Worksheet 5 of 10 • 20 questions • ⏱️ Estimated time: 20 minutes • 🎯 Intermediate level

What you'll learn in this worksheet:
Your progress through Alternating Series
Worksheet 5 of 10 (44% complete)

Question 1

Find the next term in the series: 13, 26, 8, 16, 5, ?
Alternating series: multiply by 2, divide by 3. Next operation gives 10

Question 2

Find the next term in the series: 12, 18, 12, 18, 12, 18, 12, ?
Alternating series: add 6, subtract 6. Next operation gives 18

Question 3

Find the next term in the series: 14, 42, 14, 42, 14, 42, ?
Alternating series: multiply by 3, divide by 3. Next operation gives 14

Question 4

Find the next term in the series: 13, 39, 19, 57, 28, ?
Alternating series: ×3, ÷2. Next operation gives 84

Question 5

Find the next term in the series: 14, 18, 14, 18, 14, ?
Alternating series: add 4, subtract 4. Next operation gives 18

Question 6

Find the next term in the series: 15, 22, 16, 23, 17, 24, 18, ?
Alternating series: add 7, subtract 6. Next operation gives 25

Question 7

Find the next term in the series: 13, 10, 15, 12, 17, 14, 19, ?
Alternating series: -3, +5. Next operation gives 16

Question 8

Find the next term in the series: 13, 6, 18, 9, 27, 13, 39, ?
Alternating series: ÷2, ×3. Next operation gives 19

Question 9

Find the next term in the series: 25, 29, 23, 27, 21, 25, 19, ?
Alternating series: add 4, subtract 6. Next operation gives 23

Question 10

Find the next term in the series: 7, 3, 8, 4, 9, 4, ?
Alternating series: ÷2, +5. Next operation gives 9

Question 11

Find the next term in the series: 18, 54, 27, 81, 40, ?
Alternating series: multiply by 3, divide by 2. Next operation gives 120

Question 12

Find the next term in the series: 14, 42, 41, 123, 122, 366, ?
Alternating series: ×3, -1. Next operation gives 365

Question 13

Find the next term in the series: 17, 25, 19, 27, 21, ?
Alternating series: add 8, subtract 6. Next operation gives 29

Question 14

Find the next term in the series: 20, 60, 20, 60, 20, 60, 20, ?
Alternating series: multiply by 3, divide by 3. Next operation gives 60

Question 15

Find the next term in the series: 5, 15, 20, 60, 65, 195, ?
Alternating series: ×3, +5. Next operation gives 200

Question 16

Find the next term in the series: 18, 54, 18, 54, 18, 54, ?
Alternating series: multiply by 3, divide by 3. Next operation gives 18

Question 17

Find the next term in the series: 18, 36, 18, 36, 18, 36, ?
Alternating series: multiply by 2, divide by 2. Next operation gives 18

Question 18

Find the next term in the series: 12, 19, 16, 23, 20, 27, ?
Alternating series: add 7, subtract 3. Next operation gives 24

Question 19

Find the next term in the series: 15, 45, 22, 66, 33, ?
Alternating series: multiply by 3, divide by 2. Next operation gives 99

Question 20

Find the next term in the series: 9, 12, 6, 9, 4, 7, ?
Alternating series: +3, ÷2. Next operation gives 3
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