1、初一数学上册计算题大全226 1 3 ()()(1) 22(4)3(1) 7 7 1 1 1 ( )( ) 18(23)1(19) 8 4 3 1 (0.3)(500) (2)323 (1)1393 2 1 1 1 ()()0 30(1)3(2 9 5 2 1 1 2 ( )( ) 30(28)9(13) 7 2 3 1 1 ( )(20) (3)212 (1)2027 6 6 (-17)(-16) 18(-2) -14(-12.5) 1 1 ()() 12-4(-184) (0)354 9 2 344(-20)(-16) -1.3(-5.7)(-1.6)9.1 2 1 1 1 2 1 ()(
2、) 6.9()(4.9) 5 6 7 7 5 5 (3x8) x5(82c) 19a9(9b4z) (5ab)7(4x2c) 2 (146x)z 6(2c6bc7) 3 1 1 (yz)(st) 4(7by)4(n4q) 2 3 8b(2b1) 8b(5b6s)(8s3b) 3(5m6)2m 1(6m4)(4m2) 4(ab3a)(5a5b) 20(abc2a)6(6a7abc) 4(xy2z)(xy4z) 6(pqpr)(4pqpr) 7 x 1 x 0.8x0.41.51.4x 3 8 9 2 1 3x6x 6(x8)5(x3)9 9 5 1 1 (4x5)x3 5x8(1x)5 5 5
3、y3 y2 6 0.5x4(x4)45 4 6 1 2 (23x)(5x5) 5(4x5)9 9 9 3 5 ()()(6) 6(2)2(5) 7 7 1 1 1 ( )( ) 12(24)5(12) 3 2 9 1 (0.8)(20) (2)232 (1)1197 4 1 1 1 ()()0 16(3)2(3 3 5 9 1 1 4 ( )( ) 6(20)3(13) 3 3 5 6 1 ( )(50) (1)253 (1)2980 5 3 (-12)(-10) 20(-2) 8(-17.5) 1 1 ()() -12-2(-86) (-3)353 5 8 -912(-12)(-19) 6.
4、5(-5.7)(-3.5)7.8 2 1 1 1 6 4 ()() 2.2()(9.8) 5 8 3 5 5 5 (3a2) z3(89b) 6m6(8n4c) (4mn)6(6a6b) 2 (64z)c 4(4b2bc6) 3 1 1 (yz)(pq) 4(7bx)8(n6p) 7 4 4a(3a1) 6a(2a5d)(4d9a) 4(3b8)4b 4(6b8)(7b1) 2(ab4a)(6a3b) 2(abc5a)8(7a2abc) 3(xy9z)(xy5z) 5(pqpr)(8pqpr) 7 x 1 x 0.4x0.72.42.1x 3 6 3 4 1 7x8x 5(x1)2(x8)9 7 6 1 3 (9x7)x9 3x2(14x)4 8 5 y3 y3 3 4.5x4(x1)20 4 6 1 2 (22x)(4x4) 7(4x7)4 5 9