Rules for Number Patterns

The video tutorial explains how to identify rules in number patterns. It starts with an introduction to number patterns, followed by an analysis of two specific patterns: 1, 3, 7, 15, 31 and 80, 71, 62, 53, 44. The first pattern is explained as multiplying the previous number by 2 and adding 1, while the second pattern involves subtracting 9 from the previous number. The lesson aims to teach students how to identify and apply rules to find the next number in a sequence.

What is the rule for the number pattern 1, 3, 7, 15, 31?

• Subtract 1 from the previous number

• Add 5 to the previous number

• Multiply by 2 and add 1

• Multiply by 3 and add 2

What is the next number in the sequence 1, 3, 7, 15, 31?

• 62

• 64

• 63

• 65

What is the rule for the number pattern 80, 71, 62, 53, 44?

• Divide by 2 and add 1

• Subtract 9 from the previous number

• Multiply by 2 and subtract 1

• Add 9 to the previous number

If the pattern 80, 71, 62, 53, 44 continues, what is the next number?

• 35

• 36

• 37

• 38

Which of the following sequences follows the rule of subtracting 9 from the previous number?

• 100, 91, 82, 73

• 90, 81, 72, 63

• 70, 61, 52, 43

• 60, 51, 42, 33