分数加减法简便运算题有答案Word文件下载.docx

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分数加减法简便运算题有答案Word文件下载.docx

(19)

(20)

+﹣

(21)

1﹣﹣

(22)

+++

(23)

(24)

(25)

(26)+﹣

(27)﹣(﹣)

(28)++

(29)3﹣

(30)

(31)4﹣﹣

(32).

(33)+(+)

(34)﹣(+)

(35)+++.

(36)

+﹣

(37)

+﹣+

(38)

+(﹣)+

(39)

0.58++1.12+

(40)

11﹣﹣.

(41)

(42)

(43)3.5﹣﹣.

(44)+++﹣﹣.

﹣+﹣

(45)

(46)﹣(+)

(49)

(50)﹣(﹣)

(51)

(52)

(53)﹣+﹣

(54)+++

8﹣﹣

(55)

(56)

(47)+++.(57)﹣(+)

(48)6﹣﹣(58)2﹣﹣

(59)

(69)

1﹣(

)﹣

(60)

++

(61)

﹣(+

(70)

(62)

1﹣﹣﹣﹣﹣

(71)

(63)

6﹣

(72)

﹣(﹣)

(64)

(73)

+.

(65)

(74)

(66)

(75)

(67)

(76)

(68)

(77)

(78)

(87)

(79)

(88)+

﹣+,

+2

+3

(89)

(80)++

(90)(2

﹣1

)﹣(1

﹣2

(81)

),

(82)

(91)19.76﹣4

﹣3

(83)

(92)8

﹣8

(84)

(93)2.5×

1.25×

32,

(85)

(94)

﹣,

(86)﹣+

(95)﹣(﹣),(105)

(96)1﹣,(106)51.27﹣8.66﹣1.34

(97)+,(107)32.5÷

(0.05×

50)

(98),(108)

(99),(109).

(100),(110)++﹣

(101)16×

(1000+

(111)﹣(

(102)2﹣

(112)﹣(

(103)11+13+15+17+19+21,(113),

(104)(114)﹣(﹣),

(115)﹣(﹣),(125)﹣+,

(116)+++(126)5﹣﹣1,

(117)5+1+3+2+6+4+,(127)+++,

(118)﹣+﹣,(128),

(119)()﹣(1.375﹣)(129)1﹣﹣,

(120)+

(130)

(121)+

+,

(131)

(122)+

(132)﹣(

(123)+

(133)5﹣﹣﹣

(124)+

(134)﹣(10﹣6)÷

8,

(135)++

(136)+﹣+

参考答案:

(1)++﹣,

=(+)+(﹣),

=1+0,

=1;

(2)﹣(﹣),

=﹣+,

=

(3)

=()+(+),

=7+9,

=16

(4)﹣(﹣),

=﹣,

=;

(5)+++,

=(+)+(+),

=1+1,

=2;

(6)+﹣+,

=1

(7)﹣(+),

=﹣﹣,

=,

(8)﹣﹣,

=﹣(+),

=﹣1,

(9)﹣+﹣,

=(+)﹣(+),

=1﹣1,

=0.

(10)11﹣2+3﹣0.2,

=11+3﹣(0.2+2),

=15﹣(0.2+2.8),

=15﹣3,

=12

(11)999+99+9+,

=(999+99+9)+×

3+,

=[(1000﹣1)+(100﹣1)+(10﹣1)]+(+),

=1110﹣3+3

=1110

(12)+++++++

+(+)+(+)+(+)+(+

+(+)+(+)+(+)+(

3+(+)+(×

3)+(+2)+(),

=1+1+1+1+1,

=5;

(13)﹣+﹣,

(14)

﹣1),

+1,

=+1,

=1;

(15)2﹣﹣,

=2﹣(+),

=2﹣1,

9.﹣0.4+﹣,

=﹣+﹣,

=0

(16)

=()+(),

=2+3,

=5.

(17)+++,

=+1,

(18)4﹣﹣,

=4﹣(+),

=4﹣1,

=3;

(19)+(+),

=(+)+,

=1+,

=1.

(20)+﹣,

=+﹣,

(21)1﹣﹣,

=1﹣(+),

=0;

(22)﹣,

(23)+++,

(24)4﹣2﹣1,

=4

2﹣1

=﹣

(25)7﹣(

﹣),

=7﹣

=6

(26)+﹣,

=++,=;

(27)﹣(﹣),

(28)++,

=(

+)+

=1+

=3﹣﹣﹣,

=(3﹣)﹣(+

=2

﹣1,

(30)

=(+

)+(+

(31)4﹣

=3﹣

=3

(32)1﹣+3﹣,

=1+3﹣(+),

=5﹣1,

(33)+(+),

=++,

(34)﹣(+),

(35)+++,

=++(+),

=2.

(36)+++,

(37)+﹣,

=+(﹣),

=+,

(38)+﹣+,

=(﹣)+(+),

(39)+(﹣)+,

=+﹣+,

(40)0.58++1.12+,

=(0.58+1.12)+(+),

=1.7+1,

=2.7;

(41)11﹣﹣,

=11﹣(+),

=11﹣1,

=10.

(42),

=()﹣,

=1﹣,

(43)3.5,

=3.5﹣(),

=3.5﹣1,

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