7.4.1

Two-Step Patterns

Test yourself on Two-Step Patterns

Test your knowledge with free interactive questions on Seneca — used by over 10 million students.

Two-Step Pattern Sequences

Sometimes, you'll need to identify a two-step pattern. This means that the difference between numbers is not just a multiplication, division, addition or subtraction, but a combination of these things.

Identify the two steps

Identify the two steps

  • This sequence follows the rule ‘multiply by 2 and subtract 1’.
Work out the next number

Work out the next number

  • The next number in the sequence will be (17 × 2) − 1.
    • 17 × 2 = 34
    • 34 − 1 = 33
Work out the next number

Work out the next number

  • The next number in the sequence will be (33 × 2) − 1.
    • 33 × 2 = 66
    • 66 − 1 = 65
Jump to other topics
1

Angles

1.1

7 Facts About Angles

1.1.1Facts About Angles1.1.2More Facts About Angles
1.2

Identify the Angle

1.2.1Identify the Angle
1.3

Angles on a Straight Line

1.3.1Angles on a Straight Line1.3.2Angles on a Straight Line - Practice Questions
1.4

Angles in a Circle

1.4.1Angles in a Circle
1.5

Angles in Triangles

1.5.1Angles in a Triangle
2

Fractions

2.1

Simplifying Fractions

2.1.1Simplifying Fractions2.1.2Identifying Equivalent Fractions
2.2

Improper Fractions & Mixed Numbers

2.2.1Improper Fractions & Mixed Numbers2.2.2Converting Mixed Numbers to Improper Fractions2.2.3Converting Improper Fractions to Mixed Numbers
2.3

Fractions of Numbers

2.3.1Fractions of Numbers
2.4

Expressing Shaded Areas as Fractions

2.4.1Expressing Shaded Areas as Fractions
3

Time

3.1

12-Hour & 24-Hour Clocks

3.1.1Difference Between 12-Hour & 24-Hour Clocks3.1.2Changing the 12-Hour Clock to the 24-Hour Clock3.1.3Changing the 24-hour Clock to the 12-Hour Clock
3.2

Time-Related Problems

3.2.1Time-Related Problems3.2.2Timetable & Schedule Problems
4

Prime Numbers

4.1

Prime Numbers

4.1.1Prime Numbers
5

Probability

5.1

Probability

5.1.1Probability Scale5.1.2Probability Fractions5.1.3Experimental Probability
6

Ratio

6.1

Ratios

6.1.1Ratios
7

Sequences

7.1

Constant Sequences

7.1.1Constant Increase Sequences7.1.2Constant Decrease Sequences
7.2

Doubling & Halving Sequences

7.2.1Doubling Sequences7.2.2Halving Sequences
7.3

Alternating Patterns & Two-Step Sequences

7.3.1Alternating Pattern Sequences
7.4

Two-Step Patterns

7.4.1Two-Step Patterns
7.5

The nth Term

7.5.1Find the nth Term7.5.2Using the nth Term
8

Area & Perimeter

8.1

Perimeter of a Quadrilateral

8.1.1Finding the Perimeter of a Quadrilateral8.1.2Finding the Missing Length
8.2

Area of a Quadrilateral

8.2.1Finding the Area of a Quadrilateral8.2.2Finding the Missing Side of a Rectangle8.2.3Finding the Missing Side of a Square8.2.4Finding the Area of Irregular Shapes
8.3

Area of a Triangle

8.3.1Finding the Area of a Triangle

Practice questions on Two-Step Patterns

Can you answer these? Test yourself with free interactive practice on Seneca — used by over 10 million students.

  1. 1
    What's the rule for this two-step pattern sequence?<br>8, 5, 3.5, 2.75...Multiple choice
  2. 2
    What's the rule for this two-step pattern sequence?<br>16, 22, 34, 58... Multiple choice
  3. 3
    What's the rule for this two-step pattern sequence?<br>35, 108, 327, 984...Multiple choice
  4. 4
    What's the rule for this two-step pattern sequence?<br>7, 19, 43, 91...Multiple choice
Answer all questions on Two-Step Patterns

Unlock your full potential with Seneca Premium

  • Unlimited access to 10,000+ open-ended exam questions

  • Mini-mock exams based on your study history

  • Unlock 800+ premium courses & e-books

Get started with Seneca Premium

Alternating Pattern Sequences

Find the nth Term