. 有理数运算练习〔一 [加减混合运算] 一、有理数加法. 1、[基础题]计算: 〔1 2+〔-3; 〔2〔-5+〔-8; 〔36+〔-4; 〔45+〔-5; 〔50+〔-2; 〔6〔-10+〔-1; 〔7180+〔-10; 〔8〔-23+9; 〔9〔-25+〔-7; 〔10〔-13+5; 〔11〔-23+0; 〔1245+〔-45. 2、[基础题]计算: 〔1〔-8+〔-9; 〔2〔-17+21; 〔3〔-12+25; 〔445+〔-23; 〔5〔-45+23; 〔6〔-29+〔-31; 〔7〔-39+〔-45; 〔8〔-28+37. 3、[基础题]计算,能简便的要用简便算法: 〔1〔-25+34+156+〔-65; 〔2〔-64+17+〔-23+68; 〔3〔-42+57+〔-84+〔-23; 〔463+72+〔-96+〔-37; 〔5〔-301+125+301+〔-75; 〔6〔-52+24+〔-74+12; 〔741+〔-23+〔-31+0; 〔8〔-26+52+16+〔-72. 4、[综合Ⅰ]计算: 〔11313111〔2; 〔31.21; 〔4(3)(2); ();344423527572111+0.8; 〔7〔—5+0;〔84+〔—5. 63615 〔5(3)(2); 〔6〔—5、[综合Ⅰ]计算: 101157919(0.5)()()9.75()()()()224612;〔13〔2; 12318394377()()()()()(3.5)()()()0.75()5255; 〔43423〔32二、有理数减法. 6、[基础题]计算: 〔19-〔-5; 〔2〔-3-1; 〔30-8; 〔4〔-5-0; 〔53-5;〔63-〔-5; 〔7〔-3-5 〔8〔-3-〔-5; 〔9〔-6-〔-6; 〔10〔-6-6. 6.1、[综合Ⅰ]计算: 231222-〔-; 〔2〔-1-1; 〔3〔--; 〔41-〔-2.7; 55235541112〔50-〔-; 〔6〔--〔-; 〔73-5 ; 〔8-64-丨-64丨 72245〔1〔-7、[基础题]填空: 〔1〔-7+〔 =21; 〔231+〔 =-85; 〔3〔 -〔-21=37; 〔4〔 -56=-40 8、[基础题]计算: 〔1〔-72-〔-37-〔-22-17; 〔2〔-16-〔-12-24-〔-18; 〔323-〔-76-36-〔-105; 〔4〔-32-〔-27-〔-72-87. 〔5〔-215111--〔--〔-; 〔6〔-12-[ -6.5-〔-6.3-6 ] . 326325三、有理数加减混合运算 1 / 3 . 9、[综合Ⅰ]计算 314+-; 5551715121521〔4〔-5-〔-+7-; 〔5+〔--〔--; 〔6-++-; 2336234632〔1-7+13-6+20; 〔2-4.2+5.7-8.4+10; 〔3〔-10、[综合Ⅰ]计算,能简便的要用简便算法: 1111+〔-;〔3-〔-0.25-; 25261221167〔4〔--15+〔-;〔5+〔--1+; 〔6〔-12-〔-+〔-8- 33353510〔14.7-3.4+〔-8.3; 〔2〔-2.5-11、[综合Ⅰ]计算: 〔133.1-〔-22.9+〔-10.5; 〔2〔-8-〔-15+〔-9-〔-12; 112111-〔-2.75+; 〔4〔-+〔--〔--; 4236421241101157〔5+〔--〔-+〔-; 〔6+〔--〔-+〔- 235234612〔30.5+〔-12、[综合Ⅰ]计算: 〔17+〔-2-3.4; 〔2〔-21.6+3-7.4+〔-25;〔331+〔-+0.25; 54136〔47-〔-+1.5; 〔549-〔-20.6-; 〔6〔--7-〔-3.2+〔-1; 255885631〔712+丨-11丨-〔-+丨2丨; 〔8〔- 9.9+ 10 + 9.9 +〔- 10 11115299〔112345678; 〔2-0.5+1.75+3.25+〔-7.5 〔313、[综合Ⅰ]计算: 1312321135; 〔456214; 464643〔5-0.5-〔-3+2.75-〔+71474251; 〔631297 45135262有理数运算练习〔一 答案 1、[答案] 〔1-1; 〔2-13; 〔32; 〔40; 〔5-2; 〔6-11; 〔7170; 〔8-14; 〔9-32; 〔10-8; 〔11-23; 〔120. 2、[答案] 〔1-17; 〔24; 〔313; 〔422; 〔5-22; 〔6-60; 〔7-84; 〔89. 3、[答案] 〔1100; 〔2-2; 〔3-92; 〔42; 〔550; 〔6-90; 〔7-13; 〔8-30. 4、[答案] 〔1-554215; 〔2; 〔30; 〔4-6; 〔5; 〔6; 〔75; 〔8. 61267365115、[答案] 〔16 〔24.25 〔312 〔43 6、[答案] 〔114; 〔2-4; 〔3-8; 〔4-5; 〔5-2; 〔68; 〔7-8; 〔82; 〔90; 〔10-12 2 / 3 本文来源:https://www.wddqw.com/doc/f9972b0656270722192e453610661ed9ad5155f2.html