32 Efectuează: (exercițiile sunt in poza)
va rog in seara asta urgent,dau coroana,5 stele și 50 de puncte!!!
Răspunsuri la întrebare
1) 10.000- 6×4:3:8 = 10.000- 24:3:8 = 10.000- 8:8 = 10.000 -1 = 9999
2) 10× (42: 7 :2 :3) × 10 = 10× (6:2:3) × 10 = 10 × (3:3) × 10 = 10 × 1× 10 = 100
3) 100: (2+8×7+42)×9 = 100 : (2 + 56 + 42) × 9 = 100 : (58 + 42) × 9 = 100 : 100 × 9 = 1 × 9 = 9
4) 7000 - 4×2×4:8+1396 = 7000 - 8×4:8+1396 = 7000-32:8+1396 = 7000 - 4 + 1396 = 6996 + 1396 = 8390
5) (3×3×3): (4×4:8×9:6) = (9 × 3) : (16:8×9:6) = 27 : (2×9:6) = 27 : (18:6) = 27:3 = 9
6) 1000 - (7+ 3×9 + 66) : 10 = 1000 - (7+ 27 + 66) : 10 = 1000 - (34 + 66) : 10 = 1000 - 100 : 10 = 1000 - 10 = 990
7) 6 - 6× (8 ×8 - 58 ) : 9 + 2888 = 6 - 6× (64-58) : 9 + 2888 = 6 - 6×6 : 9 + 2888 = 6- 36 :9 + 2888 = 6-4+2888 = 2+2888 = 2890
8) 7777 - 63 : (54:6) × (49:7:7) × 10 = 7777 - 63 : 9 × (7:7) = 7777 - 7 × 1 = 7777 - 7 = 7770
9) 5000 + 18 : (36: 9× 6:8) × 8 +3452 = 5000 + 18 : (4×6:8) × 8 + 3452 = 5000 + 18 : (24:8) × 8 + 3452 = 5000 + 18 : 3 × 8 + 3452 = 5000 + 6 × 8 + 3452 = 5000 + 48 + 3452 = 5000 + 3500 = 8500
baftă la școală!