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November 23rd, 2017, 11:49 AM   #1
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10 year olds math assignment challenge!

The task: Using all the digits of the year 1492 only once and in the exact order that they appear in the year 1492, construct all numbers from 1 to 100! You can use any of the following operations: square root, factorials, exponents, decimals, parentheses, negative numbers, addition, multiplication, subtraction, division.

Examples:
84 = 14 x √9 x 2
90 = (1+4) x 9 x 2

We still need the following numbers calculated:
40
41
49
59
61
62
64

The rest we’ve already calculated!

Thanks for your help!
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November 23rd, 2017, 04:54 PM   #2
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Another game, eh? Interesting...
$\displaystyle 40=1\times4+9^2$
$\displaystyle 41=(1+4)+9^2$
$\displaystyle 64=(1-\sqrt4+9)^2$
I'll leave the rest to Denis McField.
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November 23rd, 2017, 04:55 PM   #3
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Quote:
Originally Posted by Monox D. I-Fly View Post
I'll leave the rest to Denis McField.
He's too busy getting stoned...

Mathematical anxiety
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November 23rd, 2017, 05:05 PM   #4
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Perhaps Monox D. I-Fly has been doing a headstand, as 9² isn't 36.

40 = 14*√9 - 2
41 = -1 + 4! + 9*2
49 = (-1 + (√4)^(√9))^2
59 = -1 + 4*(√9)/.2
61 = -1 + 4^(√9) - 2
62 = 1*4^(√9) - 2
64 = (1*(√4)^(√9))^2
Thanks from Denis, Joppy and Math whiz
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November 23rd, 2017, 06:38 PM   #5
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Oops, guess I am being stoned when doing my headstand. Well, at least my answer for 64 was correct, so my post didn't go in vain.
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November 23rd, 2017, 09:15 PM   #6
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That’s awesome!

Thank you!
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November 18th, 2018, 12:17 PM   #7
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Wow, you guys are smart!
Can you help me with some numbers...? I need help with 27, 31, 45, 57, 55, 58, 68, 69, 70, 79, and 83
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November 18th, 2018, 12:22 PM   #8
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Oh and here are the answers to your questions... :
40= 14* squrt9 -2
41=-1+4!+9*2
49=(-1+(squrt4)^(9))^2
59=-1+4*(squrt9) divided by 2
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November 18th, 2018, 12:31 PM   #9
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Quote:
Originally Posted by Math whiz View Post
construct all numbers from 1 to 100!
That's a lot of numbers.
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November 18th, 2018, 01:28 PM   #10
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Quote:
Originally Posted by Maschke View Post
That's a lot of numbers.
Sure is! I'll start:

1 = -1 * 4 + √9 + 2
2 = -1 - 4 + 9 - 2
3 = 1 * √4 + √9 - 2
4 = -1 - √4 + 9 - 2
5 = -1 * √4 + 9 - 2
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