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分数加减法简便运算题有答案ok
分数加减法简便运算专项练习136题(有答案)
(1)++﹣
(2)﹣(﹣)
(3).
(4)﹣(﹣)
(5)+++
(6)+﹣+
(7)﹣(+)
(8)﹣﹣
(9)﹣+﹣.
(10).
(11)999+99+9+.
(12)++++++++
(13)﹣+﹣
(14)﹣(﹣1)
(15)2﹣﹣.
(16)﹣0.4+﹣.
(17).
(18)
(19)
(20)
(21)+﹣
(22)1﹣﹣
(23)+++
(24)
(25)
(26)+﹣
(27)﹣(﹣)
(28)++
(29)3﹣
(30)
(31)4﹣﹣
(32).
(33)+(+)
(34)﹣(+)
(35)+++.
(36)+++
(37)+﹣
(38)+﹣+
(39)+(﹣)+
(40)0.58++1.12+
(41)11﹣﹣.
(42)
(43)3.5﹣﹣.
(44)+++﹣﹣.
(45)﹣+﹣
(46)﹣(+)
(47)+++.
(48)6﹣﹣
(49)﹣+
(50)﹣(﹣)
(51)+﹣
(52)+++
(53)﹣+﹣
(54)+++
(55)8﹣﹣
(56)+﹣+
(57)﹣(+)
(58)2﹣﹣
(59)﹣+
(60)+++
(61)﹣(+)
(62)1﹣﹣﹣﹣﹣
(63)6﹣﹣
(64)﹣+﹣
(65)﹣(﹣)
(66)﹣(+)
(67).
(68)1﹣()﹣.
(69)﹣(+)
(70)++
(71)﹣(﹣)
(72)+﹣+.
(73).
(74).
(75)﹣+
(76)++
(77)﹣+
(78)+++
(79)+2++3,
(80)++,
(81)+++,
(82) ,
(83)﹣(+),
(84)
(85)
(86)﹣+,
(87),
(88)+﹣+,
(89),
(90)(2﹣1)﹣(1﹣2)
(90)(2﹣1)﹣(1﹣2),
(91)19.76﹣4﹣3,
(92)8﹣8+2,
(93)2.5×1.25×32,
(94)﹣+﹣,
(95)﹣(﹣),
(96)1﹣,
(97)+,
(98),
(99),
(100),
(101)16×(1000+),
(102)2﹣,
(103)11+13+15+17+19+21,
(104)
(105)
(106)51.27﹣8.66﹣1.34
(107)32.5÷(0.05×50)
(108)
(109).
(110)++﹣
(111)﹣(﹣)
(112)﹣(+)
(113),
(114)﹣(﹣),
(115)﹣(﹣),
(116)+++
(117)5+1+3+2+6+4+,
(118)﹣+﹣,
(119)()﹣(1.375﹣)
(120)+++
(121)+++++,
(122)++,
(123)+++,
(124)++++,
(125)﹣+,
(126)5﹣﹣1,
(127)+++,
(128),
(129)1﹣﹣,
(130),
(131)﹣+﹣,
(132)﹣(﹣)
(133)5﹣﹣﹣,
(134)﹣(10﹣6)÷8,
(135)++
(136)+﹣+
分数加减法简便运算136题参考答案:
(1)++﹣,
=(+)+(﹣),
=1+0,
=1;
(2)﹣(﹣),
=﹣+,
=
(3),
=()+(+),
=7+9,
=16
(4)﹣(﹣),
=﹣,
=;
(5)+++,
=(+)+(+),
=1+1,
=2;
(6)+﹣+,
=(+)+(﹣),
=1+0,
=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)﹣+﹣,
=(+)﹣(+),
=﹣1,
=
(14)﹣(﹣1),
=﹣+1,
=+1,
=1;
(15)2﹣﹣,
=2﹣(+),
=2﹣1,
=1
9.﹣0.4+﹣,
=﹣+﹣,
=(+)﹣(+),
=1﹣1,
=0
(16),
=()+(),
=2+3,
=5.
(17)+++,
=(+)+(+),
=+1,
=1;
(18)4﹣﹣,
=4﹣(+),
=4﹣1,
=3;
(19)+(+),
=++,
=(+)+,
=1+,
=1.
(20)+﹣,
=+﹣,
=;
(21)1﹣﹣,
=1﹣(+),
=1﹣1,
=0;
(22)﹣,
=﹣,
=;
(23)+++,
=(+)+(+),
=1+1,
=2;
(24)4﹣2﹣1,
=4﹣2﹣1,
=﹣;
(25)7﹣(﹣),
=7﹣,
=6.
(26)+﹣,
=﹣,
=;
(27)﹣(﹣),
=﹣,
=;
(28)++,
=(+)+,
=1+,
=1;
(29)3﹣,
=3﹣﹣﹣,
=(3﹣)﹣(+),
=2﹣1,
=1;
(30),
=(+)+(+),
=1+1,
=2;
(31)4﹣﹣,
=3﹣,
=3﹣,
=2,
(32)1﹣+3﹣,
=1+3﹣(+),
=5﹣1,
=4
(33)+(+),
=++,
=1+,
=1;
(34)﹣(+),
=﹣﹣,
=﹣,
=;
(35)+++,
=++(+),
=1+1,
=2.
(36)+++,
=(+)+(+),
=1+1,
=2;
(37)+﹣,
=+(﹣),
=+,
=;
(38)+﹣+,
=(﹣)+(+),
=;
(39)+(﹣)+,
=+﹣+,
=(﹣)+(+),
=+1,
=1;
(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,
=2.5
(44)+++﹣﹣,
=(+)+(+)﹣(+),
=1+﹣,
=1﹣,
=1
(45)﹣+﹣,
=+﹣(+),
=1﹣1,
=0;
(46)﹣(+),
=﹣﹣,
=2﹣,
=1;
(47)+++,
=++(+),
=1+1,
=2.
(48)6﹣﹣,
=6﹣(+),
=6﹣1,
=5;
(49)﹣+,
=+﹣,
=1﹣,
=;
(50)﹣(﹣),
=﹣+,
=+﹣,
=1﹣,
=;
(51)+﹣,
=﹣+,
=1+,
=1;
(52)+++,
=(+)+(+),
=1+1,
=2;
(53)﹣+﹣,
=(+)﹣(+),
=1﹣1,
=0.
(54)+++
=()+(+),
=1+,
=1;
(55)8﹣
=8﹣(),
=8﹣,
=7;
(56)﹣
=()+(),
=0+1,
=1;
(57)()
=﹣,
=,
=0.
(58)2﹣﹣,
=2﹣(+),
=2﹣,
=;
(59)﹣+,
=﹣(),
=﹣,
=;
(60)+++,
=(+)+(),
=1,
=;
(61)﹣(+),
=,
=,
=.
(62)1﹣﹣﹣﹣﹣,
=﹣﹣﹣﹣,
=﹣﹣﹣,
=﹣﹣,
=﹣,
=;
(63)6﹣﹣,
=6﹣(+),
=6﹣1,
=5;
(64)﹣+﹣,
=(+)﹣(+),
=1﹣1,
=0;
(65)﹣(﹣),
=﹣+,
=+﹣,
=1﹣,
=;
(66)﹣(+),
=﹣﹣,
=﹣,
=.
(67),
=1﹣+1﹣+1﹣+1﹣+1﹣+1﹣,
=6﹣﹣﹣,
=6﹣,
=.
(68)1﹣()﹣,
=1﹣+﹣+﹣+﹣+,
=(1﹣)+(﹣)+(﹣)+(﹣)+,
=+0+0+0+,
=
(69)﹣(+)
=﹣,
=;
(70)++
=++,
=1+,
=1;
(71)﹣()
=﹣+,
=;
(72)+﹣+
=()+(+),
=0+1,
=1.
(73)+3++1,
=(+3)+(+1),
=3+2,
=5
(74),
=++++++++,
=﹣+﹣+﹣+﹣+﹣+﹣+﹣+﹣+﹣,
=﹣,
=.
(75),
=,
=1;
(76),
=,
=1+,
=1;
(77),
=,
=;
(78),
=,
=2+,
=2.
(79)+2++3,
=(+)+(2+3),
=1+6,
=7.
(80)++,
=++,
=1+,
=1;
(81)+++,
=(+)+(+),
=1+1,
=2
(82) ,
=(+)+(+),
=1+2,
=3;
(83)﹣(+),
=﹣﹣,
=﹣﹣,
=1﹣,
=.
(84)
=(2+7)+(7+2),
=10+10,
=20;
(85)
=(1+)+(2+)+(3+)+(4+)+(5+),
=(1+2+3+4+5)+(++++),
=15+(++++﹣),
=15+(1++),
=16+,
=16;
(86)﹣+,
=+﹣,
=1﹣,
=.
(87),
=(),
=1,
=1;
(88)+﹣+,
=()+(),
=0+1,
=1;
(89),
=()+(),
=1+1,
=2.
(90)(2﹣1)﹣(1﹣2)
(90)(2﹣1)﹣(1﹣2),
=2﹣1﹣1+2,
=(2+2)﹣(1+1),
=4﹣3,
=1;
(91)19.76﹣4﹣3,
=19.76﹣(4+3),
=19.76﹣8,
=11.76;
(92)8﹣8+2,
=8+﹣(8+)+(2+),
=8+﹣8﹣+2+,
=(8﹣8+2)+(﹣+),
=2+1,
=3;
(93)2.5×1.25×32,
=2.5×1.25×4×8,
=(2.5×4)×(1.25×8),
=10×10,
=100.
(94)﹣+﹣,
=(+)﹣(+),
=1﹣1,
=0;
(95)﹣(﹣),
=(+)﹣,
=1﹣,
=.
(96)1﹣,
=1﹣(+),
=1﹣1,
=0;
(97)+,
=(),
=1﹣,
=;
(98),
=()+(),
=1+,
=1.
(99),
=10﹣(5+4),
=10﹣9,
=(9﹣9)+(1﹣),
=;
(100),
=﹣+,
=0+,
=.
(101)16×(1000+),
=16000+16×,
=16000+1,
=16001;
(102)2﹣,
=2﹣()+()