## ML Aggarwal Class 6 Solutions for ICSE Maths Chapter 2 Whole Numbers Ex 2.3

Question 1.

Using shorter method, find

(i) 3246 + 9999

(ii) 7501 + 99999

(iii) 5377 – 999

(iv) 25718 – 9999

(v) 123 × 999

(vi) 203 × 9999

Solution:

Question 2.

Without using a diagram, find

(i) 9th square number

(ii) 7th triangular number

Solution:

Question 3.

(i) Can a rectangular number be a square number?

(ii) Can a triangular number be a square number?

Solution:

Question 4.

Observe the following pattern and fill in the blanks:

1 × 9 + 1 = 10

12 × 9 + 2= 110

123 × 9 + 3 = 1110

1234 × 9 + 4 = ……….

12345 × 9 + 5 = …………..

Solution:

Question 5.

Observe the following pattern and fill in the blanks:

9 × 9 + 7 = 88

98 × 9 + 6 = 888

987 × 9 + 5 = 8888

9876 x 9 + 4 = …………

98765 × 9 + 3 = ……….

Solution: