Question

498 Efectuează: a) [25 x 11 +(4 x 25 x 6-5 x 75)]: 10:5; b) 2+2 x 3 x [(3 x 8-6 x 4): 24+ 24x 6]-8; c)[(22 x 14:2-54:3): 8+27 x 3] 2-16 x 3; d) [(25x 16:4+4x 179) 8+32 x 6]: 2-48 x 3; e) 802 606:6+ [440: 4+2x (888 :8+3x 30)]; f) 5 x [40+8 x (200:5-72: 2)]: (14x 10:4+5); g) 200-5 x [(720 : 10:9+360 : 10: 6) + 30 6 x 2]; h) 19 +19 x [125 + 7x (12 + 15 x 3) - 28 x 2] -100 x 10; i) (560:7+4x 90 +56 x 0): [(720:9): (450: 45) x 11] +96; j) 6x (36 x 9+ 165 :3) - [2 484-4x (54:9+ 360: 4)]: 10; k) [35 x 35-(1 000-3 600: 6-600: 6)]: (86+ 210: 15-3 x 25); 1) [7 350:3-(1 860+ 4 580: 2-600x 6)]: (1 765-9 x 166-171);​

Answer 1

a) [25×11+(4×25×6-5×75)]=

=[275+(100×6-375)]

=[275+(600-375)]

=275+225

=500

b) 2+2×3×[(3×8-6×4):24+24×6]-8=

=2+6×[(24-24):24+144]-8

=2+6×(0:24+144)-8

=2+6×(24+144)-8

=8×168-8

=1344-8

=1336

c) [(22×14:2-54:3):8+27×3]2-16×3=

=[(308:2-18):8+81]2-48

=[(154-18):8+81]2-48

=(136:8+81]2-48

=(17+81)2-48

=982-48

=934

d) [(25×16:4+4×179)8+32×6]:2-48×3

=[(400:4+716)8+192]2-144

=[(100+716)8+192]2-144

=(8168+192)2-144

=83602-144

=83458

(Fac un exercitiu si til trimit ca sa nu-l pierd)

Answer 2

Explicație pas cu pas:

A=10

B=858

C=142

D=3216

E=81514

F=9

G=3730

H=9842

I=2064

Nu știu sigur dacă e totul corect dar sper a te-am ajutat!