Question

6 Efectuează împărțirile, folosind descompunerea, după exemplul dat. a) 28:2= b) 84:4= c) 86:2 = d) 48:4= 39:3= 63:3= 66:2= 99:3= 36:3= (30+6):3 = = (30:3) +(6:3) = =10+2=12​

Answer 1

Răspuns:

28:2=(20+8):2=(20:2)+(8:2)=10+4=14

84:4=(80+4):4=(80:4)+(4:4)=20+1=21

86:2=(80+6):2=(80:2)+(6:2)=40+3=43

48:4=(40+8):4=(40:4)+(8:4)=10+2=12

39:3=(30+9):3=(30:3)+(9:3)=10+3=13

63:3=(60+3):3=(60:3)+(3:3)=20+1=21

66:2=(60+6):2=(60:2)+(6:2)=30+3=33

99:3=(90+9):3=(90:3)+(9:3)=30+3=33

Answer 2

a) 28:2=14
b)84:4=21
c)86:2=43
d)48:4=12
39:3=13
63:3=21
66:2=33
99:3=33
36:3=12
(30+6):3=12
12+(6:3)=12+2=14