Question

Efectueaza ,apoi verifica :prin adunare si scadere.16+23 ,76+11,73+22,83+12.

Answer 1

16+23=39 verificare 39-16=23 sau 39-23=16
76+11=87 verificare 87-76=11 sau 88-11=76
73+22= 95 verificare 95-73=22 sau 95-22=73
83+12=95 verificare 95-83=12 sau 95-12=83

Answer 2

16+23=39    23+16=39    39-16=23   39-23=16 

76+11= 87   11+76=87  87-11=76   87-76=11
 
73+22= 95  22+73=95  95-22=73    95-73=22

83+12=95    12+83=95    95-12=83   95-83=12