Răspuns :
a) 21 : 7 + 14 : 7 + 35 : 7 = 3 + 2 + 5 = 10
b) 16 : 4 + 20 : 4 + 32 : 4 = 4 + 5 + 8 = 17
c) 35 : 5 + 45 : 5 + 30 : 5 = 7 + 9 + 6 = 22
b) 16 : 4 + 20 : 4 + 32 : 4 = 4 + 5 + 8 = 17
c) 35 : 5 + 45 : 5 + 30 : 5 = 7 + 9 + 6 = 22
(21+14+35) :7=
=21:7+14:7+35:7=
=3+2+5=
=10
b) (16+20+32) :4=
=16:4+20:4+32:4=
=4+5+8=
=17
c) (35+45+30) :5=
=35:5+45:5+30:5=
=7+9+6=
=22
=21:7+14:7+35:7=
=3+2+5=
=10
b) (16+20+32) :4=
=16:4+20:4+32:4=
=4+5+8=
=17
c) (35+45+30) :5=
=35:5+45:5+30:5=
=7+9+6=
=22