+

=

Liiguta hunti

KAHE ERIMÄRGILISE TÄISARVU LIITMINE

\ovalbox{Kahe \; vastandarvu  \; summa \; on \; võrdne \; nulliga.}

\ovalbox{Negatiivse  \; arvu \; liitmise \; asemel \; lahutame \; vastandarvu \; (st \; positiivse \; arvu).}

KONTROLLIME JÄRGNEVAID VÄITEID:

5 + (-5) = ?     10 + (-10) = ?     -3 + 3 = ?

3 + (-2) = 3 - 2 = 1
8 + (-10) = 8 - 10 = - (10-8) = -2

a = 5 (slider from -10 to 10, step 1)
b = -8 (slider from -10 to 10, step 1)
u = Vector((0, -2), (a, -2))
v = Vector((a, -4), (a + b, -4))
A: (a + b, 0)
c = Segment(A, (a + b, -4))
d = Segment((a, -2), (a, -4))
B: (a / 2, -2)
C: (a + b / 2, -4)
A_1: (a + b, 0)
A_2: (a + b, 0)
tekst3: a + ""
tekst5: "(" + b + ")"
tekst7: a + b + ""
e = Segment((0, 0), (0, 2))
f = 0 (slider from 0 to 2, step 0.1)
D = If(f < 1, ((f * a), 0), (a, 0) + ((f - 1) * (b, 0)))
E = (0.21060093465275975, 0.30366522429430454)
F = (2.7660140988506368, 0.0673264345418998)
tekst1: a + b + ""