1、七年级数学上册计算题天天练 88 3 2 ()()(1) 30(2)3(2) 7 7 1 1 4 ( )( ) 2(28)3(16) 5 6 5 1 (0.5)(300) (1)352 (1)1642 4 1 1 1 ()()0 11(4)3(2 5 4 6 1 7 3 ( )( ) 18(17)8(18) 2 8 2 1 1 ( )(80) (5)212 (1)2229 6 5 (-8)(-3) 4(-14) -10.5(-9) 1 1 ()() 201(-115) (-3)353 5 6 -2213(-27)(-13) -5.8(-9)(-3.5)6.2 2 1 1 4 1 8 ()()
2、5.9()(7.7) 5 4 8 5 5 5 (3y4) z4(86a) 3m6(6y6t) (4my)5(4y5a) 1 (182z)t 7(9c2xy6) 9 1 1 (bc)(mn) 4(6ax)3(m2p) 9 4 2x(2x4) x(7x8c)(4cx) 2(5s9)4s 5(7y10)(8y6) 9(ab3a)(7a6b) 10(abc4a)9(4a4abc) 9(xy6z)(xy8z) 8(pqpr)(6pqpr) 5 x 1 x 0.7x0.10.53.4x 3 2 3 8 1 8x5x 6(x2)9(x5)20 7 5 1 3 (7x6)x7 7x3(11x)6 6 5 y2
3、 y1 6 2.5x9.5(x7)50 4 5 1 2 (54x)(2x1) 3(2x5)15 2 5 5 6 ()()(4) 8(3)3(5) 7 7 1 1 1 ( )( ) 1(15)4(14) 9 2 3 1 (0.7)(1000) (3)243 (1)2025 8 1 1 1 ()()0 24(4)2(3 9 5 9 1 1 1 ( )( ) 17(17)5(20) 2 2 3 3 1 ( )(20) (5)352 (1)2146 2 6 (-18)(-1) 11(-5) 0.5(-16) 1 1 ()() -1-4(-28) (-2)414 9 8 -109(-10)(-18) 8
4、.4(-3.1)(-4.5)4.9 2 1 1 1 9 3 ()() 1.6()(8.6) 5 7 8 7 5 5 (7m2) y3(33b) 13a4(8y7c) (9ay)2(4m2b) 8 (148y)c 9(8b8ab6) 7 1 1 (xy)(ef) 2(7by)7(n7p) 6 7 6m(6m2) 9m(7m3c)(4cm) 7(7a7)9a 1(5m6)(7m7) 7(ab7a)(5a9b) 16(abc2a)2(5a8abc) 7(xy2z)(xy6z) 7(pqpr)(6pqpr) 7 x 1 x 0.7x0.278.9x 9 6 9 8 1 3x8x 5(x3)5(x2)17 3 5 1 4 (5x9)x2 2x6(2x)7 8 5 y1 y3 6 1x6(x9)35 4 5 1 2 (52x)(2x4) 7(3x5)17 7 3