(1) 26.4+15.9+47 89.2-53.7+46.9 76.3-38.6-36.3 (321-39)÷6 = = = = = = = = (2) 72-70+29 900-47.3-227 406+36.9+94 44×3×2 = = = = = = = = (3) 683+25.8-383 359+432-189 81-81÷9 (282+467)÷7 = = = = = = = = (4) 460+177-177 698-245-155 45.6+29.9+81 5×(399-214) = = = = = = = = (5) 542-128-272 853+109-85.3 6.3×7+540 25×6÷3 = = = = = = = = (6) 550+45×0.9 838-(138+275) 9.6×4+80 78×3÷9 = = = = = = = = (7) 120+800÷10 57×8-40.6 208+342+29.2 1005÷5÷3 = = = = = = = = (8) 80.3-58.9+111 99×8+8 23.5+17.8+165 55×7×4 = = = = = = = = (9) 605×3+7 45×9-335 1000-487-513 21×4×5 = = = = = = = = (10) 8×37+460 28.9+57.8-18.9 32.9+33.2+17.1 3645÷3÷5 = = = = = = = = (11) 83.6+52.9-43.6 20.7×80-987 12.3+37×2 1.50×4÷10 = = = = = = = = (12) 194.8+53.9-64.8 40.6×7-66.9 43.8+27.9+36.2 256×0.7×0.5 = = = = = = = = (13) 726+2.7×3 4176÷3÷2 112×3÷4 96÷6×2 = = = = = = = = (14) 5614-(3000+614) 624÷3÷4 280×5÷4 2762-(762-78) = = = = = = = = (15) 1089-(400+311) 328+16×2 (100-36)÷4 347×4-192 = = = = = = = = (16) 718-75×3 (187-24)×5 2335-74×8 516-123+77 = = = = = = = = (17) 328+172×6 6×25+750 37×100-37 451+549÷3 = = = = = = = = (18) 34+306×2 720÷8-80 1865-468-332 4×38-12 = = = = = = = = (19) 368.9+49.8-68.9 16.9+584.+73.1 34.5+25.5÷5 27×4÷2 = = = = = = = = (20) 25.6+3.89+21.1 56×2×0.5 36×2÷3 258+49.3-58 = = = = = = = = (21) 45×9+55 198-98×2 (741-159)÷6 54÷6+55 = = = = = = = = (22) 167+45+282 763-84-16.3 46.8+28+0.32 405÷0.9×3 = = = = = = = = (23) 456-17.8-2.56 345+456+1.55 25×2×4 345+4...