1、七年级数学上册计算题天天练 9 3 3 ()()(10) 4(1)3(2) 7 7 1 1 6 ( )( ) 29(19)1(14) 5 6 5 1 (0.4)(1) (2)322 (1)1399 5 1 1 1 ()()0 16(1)2(2 2 2 6 1 3 9 ( )( ) 6(24)1(13) 2 2 8 1 1 ( )(70) (2)212 (1)2015 6 3 (-20)(-19) 8(-7) 11.5(-20.5) 1 1 ()() -144(-189) (0)354 3 5 -391(-3)(-10) -4.9(-10)(-1.7)3.2 2 1 1 1 7 8 ()() 6
2、.9()(1.1) 5 4 2 7 5 5 (8b2) x6(82a) 15m3(6y5c) (2my)4(7b3a) 3 (102x)c 2(3b5bc5) 4 1 1 (bc)(st) 2(8ay)2(m2q) 9 5 8n(7n9) n(2n5d)(5dn) 7(6s10)2s 7(5b10)(3b3) 3(ab9a)(6a5b) 9(abc5a)7(2a2abc) 2(xy3z)(xy7z) 7(pqpr)(3pqpr) 5 x 1 x 0.5x0.74.13.5x 9 2 6 8 1 8x9x 6(x6)2(x4)2 9 5 1 1 (9x9)x1 3x7(8x)5 7 5 y3 y
3、3 8 5x1(x7)5 4 5 1 2 (42x)(4x5) 6(9x4)9 9 9 3 4 ()()(1) 19(4)2(4) 7 7 1 1 1 ( )( ) 10(25)7(16) 6 4 9 1 (0.4)(5) (4)242 (1)2708 6 1 1 1 ()()0 1(3)2(4 5 6 3 1 1 3 ( )( ) 14(26)9(14) 8 2 4 1 1 ( )(70) (4)413 (1)2735 4 2 (-8)(-2) 0(-9) -5.5(-2) 1 1 ()() -8-1(-71) (-2)343 7 3 -1415(-2)(-8) 5.2(-4.7)(-2.8
4、)10 2 1 1 1 1 1 ()() 3.6()(1.5) 5 9 2 7 5 5 (6x9) z4(76c) 9a7(2n4c) (5an)2(7x3c) 5 (126z)c 9(4d3mn5) 4 1 1 (ab)(st) 4(9ay)7(m4q) 8 7 8n(3n9) 9n(4n5q)(6q8n) 9(4b2)3b 10(3x3)(2x5) 9(ab6a)(7a9b) 3(abc5a)7(4a6abc) 7(xy4z)(xy8z) 6(pqpr)(5pqpr) 7 x 1 x 0.5x0.82.55.2x 9 6 6 8 1 7x7x 7(x2)2(x3)1 3 2 1 4 (8x3)x2 4x2(16x)8 6 5 y2 y1 9 5x5(x4)10 4 5 1 2 (24x)(2x4) 3(9x3)20 4 7