Study the pattern:
1 × 8 + 1 = 9
12 × 8 + 2 = 98
123 × 8 + 3 = 987
1234 × 8 + 4 = 9876
12345 × 8 + 5 = 98765
Write the next two steps. Can you say how the pattern works?(Hint: 12345 = 11111 + 1111 + 111 + 11 + 1)

Solution:

The given pattern works like this:

1× 8 + 1 = 9

12 × 8 + 2 = 98

123 × 8 + 3 = 987

1234 × 8 + 4 = 9876

12345 × 8 + 5 = 98765

We observe on the left-hand side 1, 12, 123, 1234,... the digits are consecutively increasing. Also, these numbers are being multiplied with 8 in every step. Further, they are being added to consecutive numbers 1, 2, 3, 4... 

On the right-hand side the pattern of the numbers are 9, 98, 987, 9876... the digits are consecutively decreasing.

Thus, the next two steps are,

123456 × 8 + 6 = 987654

1234567 × 8 + 7 = 9876543

NCERT Solutions for Class 6 Maths Chapter 2 Exercise 2.3 Question 5

Study the pattern: 1 × 8 + 1 = 9, 12 × 8 + 2 = 98, 123 × 8 + 3 = 987, 1234 × 8 + 4 = 9876, 12345 × 8 + 5 = 98765, Write the next two steps. Can you say how the pattern works? (Hint: 12345 = 11111 + 1111 + 111 + 11 + 1)

Summary:

The next two steps of the given pattern is: 123456 × 8 + 6 = 987654, 1234567 × 8 + 7 = 9876543

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