Question

Q1. Solve:
i) Find the digital root of the following: [2]
a) 4475891
b) 2939056
ii) Verify the following sums by finding digital roots of LHS and
RHS: [6]
a) 51235 + 4567 = 55802
b) 24 × 52 = 1248
iii) Multiply using base method: 38 × 39 [2]
Q2. Do as directed:
i) Multiply using below base method: 46 × 47 [3]
ii) Multiply using above base method: 64 × 63 [3]
iii) Use base 10 and multiply the following: [4]
a) 8 × 9
b) 15 × 16

Answer 1

Answer:

722222222222222222222

5525