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3 answers
1
1
1
1
1
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2 answers
152
1 answer
10 x 10=100. Would you rather go like this: 1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1=100?
12 answers
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 5
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 5 5
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 10
1 1 1 1 1 1 1 1 1 1 5 5 5
1 1 1 1 1 1 1 1 1 1 5 10
1 1 1 1 1 5 5 5 5
1 1 1 1 1 5 5 10
1 1 1 1 1 10 10
5 5 5 5 5
5 5 5 10
5 10 10
12 ways
2 answers
1+1+1+1+1+1+1+1+1+1+1+1+1=13 3 divided by 10 = 30
3 answers
I assume by "square numbers" you mean perfect squares.
You didn't say how many of each were allowed:
1² + 1² + 1² + 1² + 1² + 1² + 1² + 1² + 1² + 1² + 1² + 1² + 1² + 1² + 1² + 1² + 1² + 1² + 1² + 1² + 1² + 1² + 1²= 23
1² + 1² + 1² + 1² + 1² + 1² + 1² + 1² + 1² + 1² + 1² + 1² + 1² + 1² + 1² + 1² + 1² + 1² + 1² + 2² = 23
1² + 1² + 1² + 1² + 1² + 1² + 1² + 1² + 1² + 1² + 1² + 1² + 1² + 1² + 1² + 2² + 2² = 23
1² + 1² + 1² + 1² + 1² + 1² + 1² + 1² + 1² + 1² + 1² + 1² + 1² + 1² + 3² = 23
1² + 1² + 1² + 1² + 1² + 1² + 1² + 1² + 1² + 1² + 1² + 2² + 2² + 2² = 23
1² + 1² + 1² + 1² + 1² + 1² + 1² + 1² + 1² + 1² + 2² + 3² = 23
1² + 1² + 1² + 1² + 1² + 1² + 1² + 2² + 2² + 2² + 2² = 23
1² + 1² + 1² + 1² + 1² + 1² + 1² + 4² = 23
1² + 1² + 1² + 1² + 1² + 3² + 3² = 23
1² + 1² + 1² + 2² + 2² + 2² + 2² + 2²= 23
1² + 1² + 1² + 2² + 4² = 23
1 answer
1+1+1+1+1+1+1+1+1+-1+1+1+10
1+1+1+1+1+1+1+1+1=9
1+1+1+1+1+1+1+1+1+-1=8
1+1+1+1+1+1+1+1+1+-1+1+1+10=20
1 answer
1 and 1 and 1 and 1 and 1 and 1 and 1 and 1 and 1 and 1
and 1 and 1 and 1 and 1 and 1 and 1 and 1 and 1 and 1 and 1
and 1 and 1 and 1 and 1 and 1 and 1 and 1 and 1 and 1 and 1
and 1 and 1 and 1 and 1 and 1 and 1 and 1 and 1 and 1 and 1
and 1 and 1 and 1 and 1 and 1 and 1.
Or
1.1 and 1.1 and 1.1 and 42.7
or an infinite number of other possibilities.
2 answers
(-1)3 = (-1)(-1)(-1) = -1
(-1)3 = (-1)(-1)(-1) = -1
(-1)3 = (-1)(-1)(-1) = -1
(-1)3 = (-1)(-1)(-1) = -1
3 answers
11111 x 11111 = 123454321
1 1 1 1 1
x 1 1 1 1 1
_______________
1 1 1 1 1
1 1 1 1 1
1 1 1 1 1
1 1 1 1 1
+ 1 1 1 1 1
_______________
1 2 3 4 5 4 3 2 1
1 answer
[Legend: Each number represents the denomination (amount) of the coin.]
1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1 = 25
1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+5 = 25
1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+5+5 = 25
1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+10 = 25
1+1+1+1+1+1+1+1+1+1+5+5+5 = 25
1+1+1+1+1+5+5+10 = 25
1+1+1+1+1+5+5+5+5 = 25
1+1+1+1+1+10+10 = 25
5+5+5+5+5 = 25
5+5+5+10 = 25
5+10+10 = 25
So the answer is 11!!!
I think you're missing 1+1+1+1+1+1+1+1+1+1+5+10 = 25 ?
1 answer
1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1 is one example.
1 answer
The answer is -1.
(1 + 1 x 1)/(1 - 1 x 1 -1) + 1 =
Follow the order of operations: parentheses/brackets, exponents, multiplication and division from left to right, and addition and subtraction from left to right.
Numerator:
Simplify 1 x 1 to 1.
(1 + 1)/(1 - 1 x 1 -1) + 1
Simplify 1 + 1 to 2.
2/(1 - 1 x 1 - 1) + 1
Denominator:
Simplify 1 x 1 to 1.
2/(1 - 1 - 1) + 1
Simplify 1 - 1 - 1 to -1.
2/(-1) +1
Simplify 2/(-1) to -2.
-2 +1
Simplify.
-1
4 answers
There are infinitely many possible solutions. One of them is
1 + 1 + 1 + 1 + 1 + 1 +1 + 1 + 1 + 1 +
1 + 1 + 1 + 1 + 1 + 1 +1 + 1 + 1 + 1 +
1 + 1 + 1 + 1 + 12
1 answer
They are -1 and +1.
They are -1 and +1.
They are -1 and +1.
They are -1 and +1.
2 answers
1 quarter, 2 dimes, 2 nickels, and 45 pennies
1+2+2+45=50
25+10+10+5+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1=100
1 answer
1 quarter, 2 dimes, 2 nickels, and 45 pennies.
1+2+2+45=50
25+10+10+5+5+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1
1 answer
The reciprocal of 1 is 1.
Proof:
a. 1*(1/1) = 1 because a*(1/a) = 1
b. 1*1 =1 because 1*a = a
c. 1/1 = 1 compare a. and b.
7 answers
There are infinitely many possible answers.
One such is 1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+16
1 answer
There are no two numbers that multiply to get 6 but add to get 18. In fact, the solutions are:
1 answer
1
1 answer
There are infinitely many possible answers:
One possible answer:
-1 and - 1 and - 1 and - 1 and - 1 and - 1 and - 1 and - 1
that is (-1) + (-1) + (-1) + (-1) + (-1) + (-1) + (-1) + (-1)
1 answer
1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 - 1 + 1 + 1 + 1 + 1 + 1 x 0
= (1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1) + (1 - 1) + (1 + 1 + 1 + 1) + (1 x 0)
= 9 + 0 + 4 + 0
= 13
It depends on if the entire equation is being multiplied by 0 or just the last plus 1. If it is just the last plus 1 then the answer is 13 like shown above. If the entire problem is being multiplied by 0 then the answer is 0.
1 answer
1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 11 - 9,999,999 = - 9,999,978
1 answer
you take 1 of the 1s and put it in the tenths place. Then you add the 1+1+1+1+1 and put the answer(5) in the ones place! that is how you get 15 out of 1 1 1 1 1 1.
1 answer
1+1+1+1+254
1+1+1+2+253
1+1+1+3+252
1+1+1+4+251
and
1*1*1*1*258
1 answer
Inelegant solution.
Maximum effort.
100-1-1-1-1-1-1-1=
99-1-1-1-1-1-1=
98-1-1-1-1-1=
97-1-1-1-1=
96-1-1-1=
95-1-1
94-1=
93
..... ..... ..... ..... ..... ..... ..... .....
Elegant solution.
Minimum effort.
100-1-1-1-1-1-1-1=
100-7=
93
2 answers