Prev

Next

Q1 of 95 Page 83

Compute the following in head:
201 199

it can be written as (200+1)(200 - 1)

using identity -

(200+1)(200 - 1)= -

= 40000-1

= 39999

More from this chapter

1

Compute the following in head:

(3.6)² – (1.4)²

1

Compute the following in head:

201 199

1

Compute the following in head:

1

Compute the following in head:

Questions · 95

4. Identities

1 1 1 1 1 1 2 2 2 2 2 2 3 3 4 4 1 1 1 2 2 2 2 2 2 3 3 4 4 5 5 1 1 1 1 1 1 1 1 2 2 3 3 3 3 1 1 1 1 1 1 1 1 1 1 1 1 2 2 3 3 3 3 3 3 4 4 4 4 4 4 4 4 4 4 1 1 1 1 2 2 2 2 3 3 3 3 1 1 1 1 1 1 1 1

Back to chapter