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How do you calculate 999 multiply 999 plus 998 plus 1 with an easier way?
Elleni
Easier way than what?
I presume you mean long multiplication of 999 by 999, adding 998 and adding 1.
- One way:
⇒ 999 x 999 + 998 + 1 = (1000 - 1) x (1000 - 1) + 998 + 1
= 10002 - 2 x 1000 + 1 + 998 + 1
= 1000000 - 2 x 1000 + 1000
= 1000000 - 1000
= 999000
- Another way:
⇒ 999 x 999 + 998 + 1 = 999 x 999 + 999
= 999 x (999 + 1)
= 999 x 1000
= 999000
Wiki User
∙ 12y ago
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