COMPLETA METTENDO I DECIMI CHE MANCANO PER ARRIVARE AD UNA UNITA' ( INTERO)

5,6+0,4= 6                                          0,3+0,7=1

0,4+0,6=1                                            8,8+0,2=9       

7,1+0,9=8                                            4,7+0,3=5

5,5+0,5=6                                            10,2+0,8=11

10,1+0,9=11                                         20,3+0,7=21

 ORA COMPLETA CON I CENTESIMI

6,50+0,50=7                                      2,77+0,23=3

2,75+0,25=23                                    0,89+0,11=1

0,51+0,49=1                                      0,40+0,60=1

3,20+0,80= 4                                     4,53+0,47=5

7,25+0,85=8                                      6,28+0,72=7

1,60+0,40=2                                      0,99+0,01=1

CALCOLIAMO IN RIGA I NUMERI DECIMALI