Question

descompune deanpartitul an suma de zeci si unitat,apoiefectueaza anpartirile.55:5;39:3;66:6;33:3;22:2;28:2

Answer 1

55=50+5
(50:5)+(5:5)=10+1=11
55:5=11
....................................
39=30+9
(30:3)+(9:3)=10+3=13
39:3=13
...........................................
66=60+6
(60:6)+(6:6)=10+1=11
66:6=11
.......................................
22=20+2
(20:2)+(2:2)=10+1=11
22:2=11
.........................................
28=20+8
(20:2)+(8:2)=10+4=14
28:2=14

Answer 2

a). 55=50+5. 50:5+5:5=10+1=11. 55:5=11. b). 39=30+9. 30:3+9:3=10+3=13. 39:3=13. c). 66=60+6. 60:6+6:6=10+1=11. 66:6=11. c). 33=30+3. 30:3+3:3=10+1=11. 33:3=11. d). 22=20+2. 20:2+2:2=10+1=11. 22:2=11. e). 28=20+8. 20:2+8:2=10+4=14. 28:2=14.