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(2020年7月整理)有理数加减法计算题(含答案).doc

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学 海 无 涯

1、计算:

(9)-3-4+19-11; (10)-8+12-16-23; (11)-4.2+5.7-8.4+10;

(12)6.1-3.7-4.9+1.8; (13)

121521-+1; (14)-++-; 334632(15)-216-157+348+512-678; (16)81.26-293.8+8.74+111; (17)-4

321111735+1-17-2; (18)2.25+3-12-8;

8312418412

(19)12-(-18)+(-7)-15; (20)-40-28-(-19)+(-24)-(-32);

(21)4.7-(-8.9)-7.5+(-6); (22)-

2111+(-)-(-)-; 36421113(23)-4?7; (24)5-10.8; (25)0.12-0.54-;

332022513(26)-4.72+16.42-5.28 (27)3?; (28)?; (?2)(?)7734131(29)(?3)?(?2); (30)(?1.2)?(?1) (31)23-17-(-7)+(-16)

445112(32)+(-)-1+ (33)(-26.54)+(-6.4)-18.54+6.4

5331711(34)(-4)-(-5)+(-4)-3 (35)(+6.1)-(-4.3)+(-2.1)-5.7

8824

123?1??1?(36) -3.4+4.7-8.35; (37)?? (38)0.5???????2.75?????

755?4??2?

(39)0.36+(-7.4)+0.3+(-0.6)+0.64; (40)9+(-7)+10+(-3)+(-9);

答案:(1)-5 (2)3 (3)-15 (4)-4 (5)-8 (6)-2 (7)-11 (8)1 (9)1 (10)-352 (11) 3.1 (12)-0.7 (13) (15)-191 (16)-92.8 (17)-22

23 (14) 341917 (18)-14 (19) 8 (20)-41 (21)0.1

2418145(22)-1 (23)3 (24)-5.3 (25)-0.57 (26)6.42 (27) ; (28)?;

1271213(29)?6; (30)0 (31)-3 (32)- (33)-45.08 (34)-6 (35)2.6

54

1

学 海 无 涯

(36) -7.05; (37)

12; (38)3.5 (39)-6.7; (40)0; 3523 (14) 34答案:(1)-5 (2)3 (3)-15 (4)-4 (5)-8 (6)-2 (7)-11 (8)1 (9)1 (10)-352 (11) 3.1 (12)-0.7 (13) (15)-191 (16)-92.8 (17)-22

1917 (18)-14 (19) 8 (20)-41 (21)0.1

2418145(22)-1 (23)3 (24)-5.3 (25)-0.57 (26)6.42 (27) ; (28)?;

1271213(29)?6; (30)0 (31)-3 (32)- (33)-45.08 (34)-6 (35)2.6

5412 (36) -7.05; (37) ; (38)3.5 (39)-6.7; (40)0;

35答案:(1)-5 (2)3 (3)-15 (4)-4 (5)-8 (6)-2 (7)-11 (8)1 (9)1 (10)-352 (11) 3.1 (12)-0.7 (13) (15)-191 (16)-92.8 (17)-22

23 (14) 341917 (18)-14 (19) 8 (20)-41 (21)0.1

2418145(22)-1 (23)3 (24)-5.3 (25)-0.57 (26)6.42 (27) ; (28)?;

1271213(29)?6; (30)0 (31)-3 (32)- (33)-45.08 (34)-6 (35)2.6

5412 (36) -7.05; (37) ; (38)3.5 (39)-6.7; (40)0;

35答案:(1)-5 (2)3 (3)-15 (4)-4 (5)-8 (6)-2 (7)-11 (8)1 (9)1 (10)-352

2317 (14) (15)-191 (16)-92.8 (17)-22 3418191(18)-14 (19) 8 (20)-41 (21)0.1 (22)-1 (23)3 (24)-5.3 (25)-0.57

2412451(26)6.42 (27) ; (28)?;(29)?6; (30)0 (31)-3 (32)- (33)

5712123-45.08 (34)-6 (35)2.6 (36) -7.05; (37) ; (38)3.5 (39)-6.7; (40)0;

435(11) 3.1 (12)-0.7 (13)

1

(2020年7月整理)有理数加减法计算题(含答案).doc

学海无涯1、计算:(9)-3-4+19-11;(10)-8+12-16-23;(11)-4.2+5.7-8.4+10;(12)6.1-3.7-4.9+1.8;(13)121521-+1;(14)-++-;334632(15)-216
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