parantezele påb tudni operaților. 1 Calculeaza a) (17-9 +24-6-891:27) :3= 105 b) (528: 24+420:3+ 11×17) *15= 5235 c) 5-47 + 12x 95-725 : 25 = d) (247+743): 45+ 4×(276-197) = 328 e) 9×(17×4+27) -(105+75 +65):5= [1 500 + 27 (639:9) - (536: 8)] : 10 = 1200 306 g) [(63+ 19 x 24):3+ 464:4-11 11] x 25 = h) 160 - 4×[15+5= (265-4×65)] = 23 1) (243 × 15:27 + 26 664:24) : (900:36-23) = 7682 [(1 473-589 +2 907-3247) : 32+ (61 35-55-35) 1×100 = 2270 6 k) [(311 + 114-100): 5+ (70+84x5:4)]-230 = 15 1) 2 099 +1-(109 +1-672:7)×4+6:6= 2099 902 m) [187- (366:6+3):8]x3-500+625:5= n) 113 × 4 + [136 × 75 - (324:4:9x3+45) +246-123:31 = 70875 0) [142x5-(1 122: 11-707:7) x 125]: 15:3= p) [(812-8 750: 25):22] 103 - 1 094 = 4) (126× 32 + 89 x 63): [105 324-89 113-(230 x 68 +7x70)] = r) [(964 × 12 + 36 12): 100 + 72 x 6]: 24- (12 696:24-2x253) = s) [(6 027: 21-1 480:40): 25 x (48x45:15)] : 24 = t) [6×10 100-(25x4-40) x 5] -(10x10x7+120:3×35) = u) [12 x 44+ (750+ 450:6+ 27:9): 6]: 2+4= v) [12 x 33 + 4 × (950-250x3+4)]:3+47x13 = A Matematică Clasa a IV-a Caiet de lucru​




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