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V26.Adunarea si scaderea numerelor zecimale

Atentie la calcule! Rezolvati mai intai exercitiile pe caiet. Mult succes!

1. Daca numarul zecimal x verifica 23 - x = 13.15 , atunci x este # .
a, b matching excercise , c create online activities ,
2. Daca a=0.4%2b0.04%2b0.004%2b0.556 si b=0.2%2b0.02%2b0.002%2b0.778 , atunci a # b.
16.32, , ,
3. Efectuati 14.2-3.46=#
4.7, , learning ,
4. Efectuati 1.4%2b3.3=#
10.281, educational games , ,
5. Daca a = 3.45%2b13.57-10.43 si b = 25.24-24.64%2b3.12 ,atunci a # b .
11.24, , ,
6. Alegeti schema corecta pentru a efectua 121.45%2b3.5 : a) 121.45%2b b) 121.45%2b c) 121.45%2b 3.5 3.5 3.50 -------- --------- --------
10.74, online activities , ,
7. Efectuati 3.54%2b6.741=#
%3c, %3e, =,
8. Efectuati 4%2b12,32=#
%3c, %3e, =,
9. Cate numere naturale x verifica 8.9 %2b x %3c 9.8
11.26, , ,
10. Daca numarul zecimal x verifica x - 4.21 = 7.05 , atunci x este # .
9.85, interactive , ,
11. Efectuati 23.45-12.21=#
nici unul, unul, doua, o infinitate,