👤
a fost răspuns

calculati:1+2+3+4+,,,,+198+199+200,1+2+3+4+.,,+998+999+1000,7+8+9+.,,+229+230+231, 2+4+6+,,,,+60+62+64

Răspuns :

100*201 500×1001 231×116-21 32×33
1+2...+200=200x201:2=20100
1+2+...1000=1000x1001:2=500500

7+8...+231=
231x232:2-7x8:2=
26796-28=26768

2+4..64
(avem 32 numere)
32x65:2=1040

Alte intrebari