Question

1 . Efectueaza suma numerelor folosind descompunerile lor:
a) 1423+3219 b) 7514+12108 c) 251367+324532

2. Calculeaza asezand termenii unul sub celelalt:
a) 7253+2543 b) 800518+39530 c 837043+68739
306413+639585 342514+236462 42090+396705

Answer 1

7253+2543=7000+200+50+3+2000+500+40+3=6+90+700+9000= 9796 (modelul) 7253+ 2543 _____ 9796