Discussion of Question with ID = 083 under Basic-Simplification

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Question

What is 146 × 9?

A

1314.

B

1323.

C

1305.

D

1332.

Soln.
Ans: a

This is a multiplication by 9. Proceed like this: 146 × 9 = 146 × (10 - 1) = 146 × 10 - 146 = 1460 - 146 = 1314. Sometimes, the options can be ruled out by examining the units places, but for simpler cases these shortcuts will help you save time overall.

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