my number is exactly the same size

copy the previous number. you may not make it bigger or smaller

10

1+1+1+1+1+1+1+1+1+1

102-1 in base 3

4.5+5.5

1111111111 (base 1)

Σ[n=0->n=∞](9/(10^n))

(sigma(n=1, 10) n/n)

2+2+2+2+2
simple

floor[Integral from x=0->x=2.9 of (x^4-3x^3+x^2+2x+2) dx]

t = 2 e = 4 n = 1.25 ten

X

TREE(3)-TREE(3)+10

\int _0^4:\left(x+0.5\right)dx

(-5^(1/8)/2^(3/8)+(5^(1/8)*i)/2^(3/8))^8

111111-111100-000001

sum of all integers between 1 and 4, inclusive

67 - 57