what is the answer to 50x2525-65=?

👨🏻‍🏫 學術台數學

[匿名]

2009-08-07 9:02 am

please tell me the answer any one with out using a caulcater

回答 (7)

An ESL Learner

2009-08-07 9:18 am

✔ 最佳答案

.......2525
x ........50
-------------------
....126250

....126250
‒ ........65
-------------------
....126185

50 x 2525 - 65
= 126250 - 65
= 126185

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nozar nazari

2009-08-07 4:12 pm

=252500/2 -65=126250 - 65=126185
God bless you.

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[匿名]

2009-08-07 4:12 pm

You can treat 50 * 2525 as (100 * 2525) / 2 and then subtract 65 or

50 * 2525 - 50 - 15 = 50(2525 - 1) - 15 = 50 * 2524 - 15

50 * 2524 is 100 * 2524/2 = 100 * 1262 so 126200 - 15 = 126185

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[匿名]

2009-08-07 4:09 pm

126,185

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[匿名]

2009-08-07 4:09 pm

50x2525-65= = (100/2)Ã2525 – 65 = 252500/2 - 65
= 126250 - 65 = 126185

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[匿名]

2009-08-07 4:08 pm

2525x50 = 126250

==> 126250 - 65 = 126185