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1、学校:_ 班级:_ 姓名:_ 考号:_ 密封线内不准答题_20152016学年上学期六年级数学(解方程、简便运算)强化训练(一)一、解方程。(1) 3X= (2) X= (3) X= (4)=30% (5)X = (6)X-0.25= (7)X=20 (8)50% X + X = 3.6 (9) 25% X + 15%X = (10)X - 15%X = 68 (11)X X = (12)XX121 (13)XX= (14)X + X = 4 (15)X+X=20(16)6X5 =13.4 (17)4X638 (18)X+=(19)4X3 9 = 29 (20)5X3 (21)4X6=2(22
2、)0.365- X = (23)X - 0.8 X = 16+6 24)( X - 4.5) = 7 (25)X12 (26) 2(X-2.6)=8 (27) X-X=(28)X( + )= (29)X0.375X = (30)20X 8.5= 1.5 (31) X - X -4= 21 (32) 4+0.7X=102 (33)X - 25%X = 10二、简便运算。(1)(- )60 (2) 36 (3)0.65101(4)(1.25-0.125)8 (5) 258 (6)24(-) (7)(12+) 7 (8)1310.2 (9)2.699(10) + (11) 27.53.7-7.53.
3、7 (12)+(13)101- (14) 99 + (15)-(16)103-2- (17) 0.921.410.928.59 (18)2.254.8+77.50.48 (19) 4.87.8+780.52 (21)1.311.61.61.3(22) (15) (23) 4.3612.58 (24) 2.5321.25(25)1.250.8 (26) 9.63.23 (27)15.20.254 (28) (29) 33 (30) 146.5-(23+46.5) (31)12.89-(3.89-1.6) (32)73.8-1.64-13.8-5.36 (33) 15.75+3.59-0.59+14.25(34)15.48-(9.4-0.52) (35) 12.065.072.9 (36)30.349.7610.34 -第1页/共4页- -第2页/共4页-