1、七年级有理数的加减法习题库1066(89)(0.9)525(58)7.1(1.8)31(8)0.9(50)90(10) 1 3 () 2 2 4 3 1() 5 5 5 12.510.5 4 8() 5 5 1 2 5 54 4()3 35.4(19)(59)11(5.4)(7.2)2.18.9(4)58(90)87(53)8(7)0.2(90) 3 3 () 2 2 6 2 2 () 7 7 79.513 1 3 () 2 2 2 1 3 23 1()2 27.1(17)(6.5)47(5.8)(4.5)5.679(9.2)99(4.9)6.8(2.3)0.9(0.5)0.7(5) 4 2
2、() 3 3 1 2 2() 5 5 521.55 6 6 () 5 5 1 1 3 21 1()2 269(6.1)(64)2(80)(9)442.8(13)1.8(32)45(64)20(0.5)0.2(0.8) 4 1() 3 3 1 2 2 () 3 3 3 1713.5 3 1 () 2 2 1 1 3 23 3()2 20.1(65)(4.4)6.6(89)(4)663.7(30)3.5(27)3.5(49)0.1(8)40(4) 1 3 () 2 2 1 2 2() 5 5 592 3 1() 2 2 3 2 5 52 2()3 32.1(9.4)(58)54(95)(8.8)6
3、54.5(41)14(29)9.8(7.8)80(10)0.2(80) 9 4() 5 5 2 1 2 () 5 5 5 916 6 4 () 5 5 4 2 5 54 5()3 310(2.9)(42)1.7(4.2)(24)763.3(14)3.2(4)7.5(71)0.1(90)4(10) 2 5() 3 3 4 1 5() 7 7 7 13.518 1 3 () 5 5 1 3 2 54 1()3 33(26)(7.7)68(8.4)(0.3)13(61)3.6(8)7.6(2.7)3(50)1(0.4) 4 1() 5 5 6 3 3() 7 7 724.57 1 3 () 2 2
4、3 1 5 25 5()3 38.1(96)(5)12(51)(6)9990(2.7)6.5(0.6)10(6.7)0.8(90)1(30) 9 4() 5 5 1 1 6 () 7 7 7 54 8 2() 5 5 2 2 3 37 2()5 53.9(79)(5)44(22)(14)8.671(66)30(9)5.1(6.1)6(3)40(7) 4 4() 3 3 1 1 1 () 3 3 3 21.51 4 7() 5 5 4 1 5 53 9()5 522(93)(3.2)7.1(3.6)(1.3)7.63.1(4.7)84(16)4.8(7.9)0.8(2)50(9) 1 3() 2
5、 2 1 1 1 () 2 2 2 0.57.5 1 2() 3 3 1 1 3 25 1()3 36.1(6.2)(9)69(71)(27)8.99.8(5.2)4(66)3.5(6)7(0.7)20(10) 1 5() 3 3 1 3 1() 5 5 510.521.5 3 3() 2 2 3 2 5 38 6()5 56.1(1.7)(8.3)8.7(5.3)(1)4.52.4(3.9)87(7.6)2.8(2.1)90(3)0.7(3) 3 1() 5 5 1 1 1() 2 2 2 54.5 4 2() 3 3 1 1 2 22 4()3 33.8(2.2)(7.7)9.4(35)(
6、1.5)4.87(7.6)53(83)75(9.2)0.5(0.9)2(70) 1 3 () 2 2 1 1 2 () 3 3 324.53 8 4 () 5 5 1 4 2 51 3()2 28.7(2)(7.7)74(2.8)(8.1)4825(96)0.3(5.3)33(6.5)70(80)0.7(5) 5 1 () 3 3 1 1 4 () 5 5 5 24.520 6 9 () 5 5 1 2 3 37 1()5 59.5(24)(5.3)6.9(7.6)(3.8)2451(1.2)53(0.8)5.5(4)30(70)30(90) 4 1() 3 3 1 5 5() 7 7 7 2
7、2.59 4 2 () 5 5 4 1 5 21 5()3 335(6.4)(5.8)52(28)(32)8.51.5(8.1)5.4(0.6)7.3(5.3)0.1(0.2)0.5(6) 2 5 () 3 3 5 4 6 () 7 7 78.521.5 1 3() 2 2 1 1 2 32 5()3 31.8(7.9)(0.9)8.7(63)(0.9)289(21)5.8(94)25(6.4)30(7)0.7(8) 7 8 () 5 5 1 1 1() 2 2 27.52 4 9() 5 5 1 1 3 21 1()2 25.6(83)(7.8)47(98)(88)1234(28)3.6(1
8、.1)7.7(4.9)70(50)40(0.1) 1 4() 3 3 2 3 3() 5 5 52218.5 4 2 () 3 3 4 1 5 24 4()5 56.6(5.8)(35)6.7(93)(3.4)3.355(4.5)49(17)1.3(80)0.1(30)0.7(6) 1 3 () 2 2 3 4 3 () 5 5 522.522.5 1 1 () 2 2 1 2 5 33 3()2 25.1(55)(0.5)48(73)(2)8.12.3(85)38(16)5.8(5)2(10)0.7(4) 1 1() 2 2 1 1 1() 2 2 218.54 3 3 () 2 2 1 1
9、 3 21 3()2 214(92)(7.4)8.1(76)(41)1.60.1(12)7.9(19)80(6.2)7(80)2(10) 1 9() 5 5 5 2 5 () 7 7 713.519.5 6 6 () 5 5 2 1 5 54 1()3 33.3(21)(6.7)72(7)(3.8)0.95(18)3.8(9.3)7(0.9)60(0.6)20(60) 1 2() 3 3 2 1 2 () 3 3 3133 5 1 () 3 3 3 4 5 54 2()3 37(8.9)(6.5)1.8(3.1)(7.2)2.299(85)5.8(47)83(26)6(20)70(90) 3
10、1 () 2 2 2 1 1() 3 3 3 921 7 4() 5 5 1 2 5 39 7()5 546(0.6)(1.7)8.4(39)(1)63.5(57)70(8.5)2.2(7.5)0.9(0.6)7(8) 1 3 () 2 2 1 2 4() 5 5 52510.5 4 1 () 3 3 1 1 5 21 1()3 338(82)(5)5.4(70)(43)2.217(54)1.2(28)5.9(4)0.1(20)0.1(2) 3 1() 2 2 2 1 1() 3 3 38.515.5 4 4 () 3 3 1 1 3 21 4()3 354(6.3)(93)9(23)(1)9
11、76.4(27)62(33)2.2(11)0.1(6)9(0.6) 1 3 () 2 2 2 2 2() 3 3 31619.5 3 1() 2 2 3 2 5 59 6()5 56.5(55)(73)2.8(5.1)(87)7.44.5(7.6)8.2(80)22(62)0.7(1)7(0.5) 4 8() 5 5 2 1 1() 5 5 510.524.5 1 4 () 3 3 1 2 3 35 4()3 325(75)(3.7)8.5(11)(57)2350(3.7)6.3(59)5.1(68)0.2(7)0.8(10) 2 5 () 3 3 3 2 4 () 5 5 5 1811 4
12、4() 3 3 2 2 3 31 1()3 36.6(30)(3.2)3.2(3.7)(7.2)73.2(2.6)7.5(1.2)1.9(45)0.9(0.7)60(2) 1 1() 3 3 1 1 1 () 2 2 2 21.53.5 6 6() 5 5 1 1 2 23 3()2 25(59)(5)0.3(30)(95)435.7(40)9(2.5)7.9(2.5)30(0.5)40(20) 1 1 () 2 2 1 1 1 () 2 2 2 24.514 3 1() 5 5 1 3 2 53 3()2 20.4(45)(81)84(26)(5)7.18(8.3)63(3.6)94(1.6
13、)50(2)0.8(40) 5 2 () 3 3 6 4 5() 7 7 75.57 4 1() 5 5 1 1 2 24 5()3 390(65)(54)46(37)(9)109(8.7)1(5.7)0.1(45)20(9)9(7) 5 5 () 3 3 2 2 1 () 3 3 33.513 2 2() 3 3 1 4 2 55 5()3 315(1.4)(96)15(27)(88)7.493(31)1.3(3.2)75(0.7)2(0.5)30(60) 4 1() 3 3 1 1 1 () 3 3 363.5 5 2() 3 3 1 1 2 26 9()5 544(3.9)(14)6.8
14、(7.1)(5.1)8799(4.8)47(1.5)47(1)80(10)30(0.8) 1 6() 5 5 1 2 1() 3 3 3 8.512 1 1() 2 2 1 2 5 39 3()5 55.9(3.2)(9.1)6.7(19)(7.2)1.175(2)31(63)17(2.4)9(0.6)6(7) 6 2() 5 5 1 1 1() 3 3 3 201.5 3 1 () 2 2 1 1 2 21 3()2 22.4(6.3)(8.6)4.3(92)(9.5)473.1(51)1.8(13)53(90)0.2(1)50(3) 1 3() 5 5 1 1 2() 3 3 3 923.
15、5 1 1() 3 3 3 1 5 24 1()3 31.4(8.7)(1.7)62(4.8)(96)6.52.4(2.9)77(4.4)1.3(25)0.2(0.7)90(20) 3 1 () 2 2 5 6 2 () 7 7 7 24 5 4 () 3 3 1 2 2 33 3()2 23.8(9.6)(5.7)6.9(11)(95)231.6(5.5)3.3(9.7)2.7(9.8)9(6)8(10) 7 7() 5 5 3 4 3 () 7 7 7715 4 5() 3 3 1 1 2 55 4()3 35.4(15)(4.7)91(15)(3.2)4061(63)45(0.7)1.5
16、(67)4(6)60(0.4) 3 1() 2 2 2 1 1() 3 3 3219.5 4 2 () 3 3 1 1 2 24 4()3 31.5(5.7)(54)7.9(22)(0.3)2.144(9.5)82(84)69(9.5)0.9(0.8)0.4(0.9) 1 2 () 3 3 3 3 5 () 7 7 7 2512.5 5 2() 3 3 2 2 3 31 3()2 264(4.7)(5.1)1(59)(7.8)5.994(18)1(33)8.9(28)60(9)0.1(3) 1 3() 2 2 1 1 1 () 2 2 2 10.511.5 1 2 () 3 3 1 3 3 51 4()3 396(3.2)(73)4.4(60)(4.2)9982(50)6.1(92)0.5(9.9)3(0.7)20(20) 6 8() 5 5 1 2 2() 3 3 313.512.5 1 4 () 3 3 4 2 5 31 6()5 53(7.7)(94)34(81)(54)97.6(6)4.4(40)23(67)0.4(4)0.1(0.3) 4 5 () 3 3 1 1 1 () 2 2 2175.5 2 2 () 5 5 1 1 2 24 2()3 346(92)(27)25(43)(5.3)
