有理数加减法计算题(含答案).

余年寄山水
553次浏览
2020年12月24日 14:13
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2020年12月24日发(作者:乌力吉)


1、计算:

(1)3-8; (2)-4+7; (3)-6-9; (4)8-12;
(5)-15+7; (6)0-2; (7)-5-9+3; (8)10-17+8;

(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;



(15)-216-157+348+512-678;



(1 7)-4
2
3
+1
11
12
-17
117
4
-2
18





(19)12-(-18)+(-7)-15;


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

(13)
1
3

2
3
+1;




(14)-
1521
4
+
6
+< br>3

2

(16)81.26-293.8+8.74+111;
(18)2.25+3
3
4
-12
53
12
-8
8

(20)-40-28-(-19)+(-24)-(-32);
(22)-
2
3
+(-
111
6
)-(-
4
)-
2< br>;






1
113
(23)-4
7
; (24)5-10.8; (25)0.12-0.54-;
3320
2


2513
(2)()
(26)-4.72+16.42-5.28
(27)
3
; (28)


7734


(1.2)(1)

(31)23-17-(-7)+(-16)
(29)
(3)(2)
; (30)
1
4
3
4
1
5


(32)



(34)(-4




123

1

1

(36)
-3.4+4.7-8.35;

(37)

(38)
0.5





2.75






755

4
< br>2

211
+(-)-1+ (33)(-26.54)+(-6.4)-18.54+6.4
353
7111
)-(-5)+(-4)-3
(35)(+6.1)-(-4.3)+(-2.1)-5.7

8248




(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)
34
1719
(18)-14 (19) 8 (20)-41 (21)0.1
24
18
145
(22)-1 (23)3 (24)-5.3 (25)-0.57 (26)6.42 (27) ; (28)


127
12
13
(29)
6
; (30)0 (31)-3 (32)- (33)-45.08 (34)-6 (35)2.6
54
12
(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)
34
1719
(18)-14 (19) 8 (20)-41 (21)0.1
24
18
145
(22)-1 (23)3 (24)-5.3 (25)-0.57 (26)6.42 (27) ; (28)


127
12
13
(29)
6
; (30)0 (31)-3 (32)- (33)-45.08 (34)-6 (35)2.6
54
12
(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)
34
1719
(18)-14 (19) 8 (20)-41 (21)0.1
24
18
145
(22)-1 (23)3 (24)-5.3 (25)-0.57 (26)6.42 (27) ; (28)


127
12
13
(29)
6
; (30)0 (31)-3 (32)- (33)-45.08 (34)-6 (35)2.6
54
12
(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
(11) 3.1 (12)-0.7 (13) (14) (15)-191 (16)-92.8 (17)-22
34
18
191
(18)-14 (19) 8 (20)-41 (21)0.1 (22)-1 (23)3 (24)-5.3 (25)-0.57
2412
45
1
(26)6.42 (27) ; (28)

;(29)
6
; (30)0 (31)-3 (32)- (33)
5
7
12
12
3
-45.08 (34)-6 (35)2.6 (36) -7.05; (37) ; (38)3.5 (39)-6.7; (40)0;
4
35

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