Question

7. Use suitable property for calculating.
(i) 15 x 99
(ii) 17 x 103
(iii) 17x3 + 17x97 (iv) 15x45 + 15x5
(v) 35 x 93 +35 x 7​

Answer 1

Answer:

hi mate.

Step-by-step explanation:

1)15×99=1485

2)17×103=1751

3)17×3+17×97

=51+17×97

=51+1649

=1700.

4)15×45+15×5

=625+15×5

=675+25

=750.

5)35×93+35×7

=3255+35×7

=3255+245

=3500.