分数加减法简便运算题有答案Word文件下载.docx
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(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,