(1) ++﹣
(2) ﹣(﹣) (3) .(4) ﹣(﹣) (5)
+++
(6) +﹣+ (7) ﹣(+) (8) ﹣﹣ 题(有答案)
(9) ﹣+﹣.
(10) .
(11) 999+99+9+.
(12) ++++++++
(13)
﹣+﹣
(14) ﹣(﹣1)
(15) 2﹣﹣.
(16) ﹣0.4+﹣.
欧阳索引创编 2021.02.02
(17) . (18)
(19)
(20)
(21)
+﹣
(22)
1﹣﹣
(23)
+++
(24)
(25)
欧阳索引创编 2021.02.02
(26) +﹣
(27)
﹣(﹣)
(28)
++
(29) 3﹣
(30)
(31) 4﹣
﹣
(32)
.(33)
+(+)
(34)
﹣(+)
欧阳索引创编 2021.02.02
(35) +++. (36)
+++
(37)
+﹣
(38)
+﹣+
(39)
+(﹣)+
(40)
0.58++1.12+
(41)
11﹣﹣
.
(42)
(43) 3.5﹣﹣.
欧阳索引创编 2021.02.02
(44) +++﹣﹣.
﹣+﹣
(45)
(46)
﹣(+)
(47)
+++.
(48) 6﹣
﹣
﹣+
(49)
(50) ﹣(﹣)
(51)
+﹣
(52)
+++
欧阳索引创编 2021.02.02
(53) ﹣+﹣
(54) +++
(55)
8﹣﹣
(56)
+﹣+
(57) ﹣(+) (58) 2﹣﹣ (59) ﹣+ (60) +++ (61) ﹣(+) 欧阳索引创编(62)
1﹣﹣﹣﹣﹣
(63)
6﹣﹣
﹣+
﹣
()
﹣(﹣)
(65)
(66) ﹣(+)
(67) .
(68) 1﹣()﹣
.(69) ﹣(+)
2021.02.02
欧阳索引创编 2021.02.02
(70) ++
(71) ﹣(﹣) (72) +﹣+. (73) . (74) .(75) ﹣+ (76)
++
﹣
+(77)
(78)
+++
欧阳索引创编 2021.02.02
(79)
+2++3,
(80)++,
(81)+++,
(82) ,
(83)﹣(+),
(84)
(85)
(86)﹣+,
(87)
,
欧阳索引创编 2021.02.02
(88)+﹣+, (), (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)﹣(﹣), 欧阳索引创编 2021.02.02
(96)1﹣,
(97)+,
(98),
(99),
(100),
(101)16×(1000+),
(102)2﹣,
(103)11+13+15+17+19+21,(104)
欧阳索引创编 2021.02.02
(105) (106)51.27﹣8.66﹣1.34
(107)32.5÷(0.05×50)
(108) (109). (110)++﹣ (111)﹣(﹣) (112)﹣(+) (113),欧阳索引创编 2021.02.02
(114)﹣(﹣),
(115)﹣(﹣),
(116)+++
(117)5+1+3+2+6+4+,(118)﹣+﹣,
(119)()﹣(1.375﹣)(120)+++
(121)+++++,
(122)++,
欧阳索引创编 2021.02.02
(123)+++, (124)++++, (125)﹣+, (126)5﹣﹣1, (127)+++, (128),(129)1﹣﹣, 参:
欧阳索引创编 2021.02.02
(130),
(131)﹣+﹣,
(132)﹣(﹣)
(133)5﹣﹣﹣,
(134)﹣(10﹣6)÷8,
(135)++
(136)+﹣+
欧阳索引创编 2021.02.02
(1)++﹣, =(+)+(﹣), =1+0, =1;
(2)﹣(﹣), =﹣+, =
,
(3)=()+(
+
),=7+9, =16
(4)﹣(﹣), =﹣, =;
(5)+++, =(+)+(+), =1+1, =2; (6)+﹣+
,
=(
+
)+(﹣),
=1+0, =1
(7)﹣(+),
=﹣﹣,
=,
=; (8)﹣﹣, =﹣(+), =﹣1, =
;
(9)﹣+﹣,
欧阳索引创编 2021.02.02
欧阳索引创编 2021.02.02
=(+)﹣(+), =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+
﹣,
欧阳索引创编 2021.02.02
欧阳索引创编 2021.02.02
=﹣+﹣, =(
+
)﹣(+),
=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)﹣, =﹣, =;
欧阳索引创编 2021.02.02
欧阳索引创编 2021.02.02
(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;
欧阳索引创编 2021.02.02
欧阳索引创编 2021.02.02
(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)+﹣+,
欧阳索引创编 2021.02.02
欧阳索引创编 2021.02.02
=(﹣)+(+), =
;
(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)﹣+﹣, =+﹣(+),
欧阳索引创编 2021.02.02
欧阳索引创编 2021.02.02
=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;
欧阳索引创编 2021.02.02
欧阳索引创编 2021.02.02
(53)﹣+
﹣,
=(
+)﹣(+),
=1﹣1, =0. (54)+++
=()+(+),
=1+, =1; (55)8﹣ =8﹣(), =8﹣, =7
;
(56)﹣ =()+(
),=0+1, =1; (57)()
=﹣,
=,
=0.
(58)2﹣﹣, =2﹣(+ ), =2﹣, =
;
(59)﹣+, =﹣(),
=﹣, =;
(60)+++,
欧阳索引创编 2021.02.02
欧阳索引创编 2021.02.02
=(+)+(),
=1, =
;
(61)﹣(+), =,
=,
=.
(62)1﹣﹣﹣﹣﹣
,=﹣﹣﹣﹣,
=﹣﹣﹣,
=﹣﹣, =﹣, =
;
(63)6﹣﹣
,
=6﹣(+
),
=6﹣1, =5; ()﹣+﹣,
=(
+)﹣(+),
=1﹣1, =0;
(65)﹣(﹣), =﹣+, =+﹣, =1﹣, =;
(66)﹣(+), =﹣﹣, =﹣,
欧阳索引创编 2021.02.02
欧阳索引创编 2021.02.02
=. (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,
欧阳索引创编 2021.02.02
,
欧阳索引创编 2021.02.02
=5 (74)=
+
+
+
+
+
+
, +
+, =﹣+﹣+﹣+﹣+﹣+﹣+﹣+﹣+
﹣
=﹣,
=
.
(75),
=, =1
;
(76), =, =1+, =1; (77),
=, =
;
(78),
=,
=2+, =2
. (79)
+2
++3
, =(+)+(2+3),
=1+6, =7.
(80)++, =++, =1+, =1;
欧阳索引创编 2021.02.02
,
欧阳索引创编 2021.02.02
(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), =(
)
,
欧阳索引创编 2021.02.02
欧阳索引创编 2021.02.02
=1
,
=1;
(88)+﹣+, =()+(
),
=0+1, =1; (), =()+(
),
=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.
欧阳索引创编 2021.02.02
欧阳索引创编 2021.02.02
(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+, =.
欧阳索引创编 2021.02.02
欧阳索引创编 2021.02.02
(101)16×(1000+),
=16000+16×,
=16000+1, =16001; (102)2﹣, =2﹣()+(
),
=2﹣1,
=, =, =
(103).11+13+15
+17
+19
+21, =(11+13+15+17+19+21)+(++
+
++
),
=(11+21)×6÷2+(1﹣+﹣+﹣+﹣+﹣+),=96+(1﹣), =96+, =96. (104)
(105)
(106)51.27﹣8.66﹣1.34 (107)32.5÷(0.05×50) (108) (109).
(104)
=, =1+, =
;
(105) =,
=
;
欧阳索引创编 2021.02.02
欧阳索引创编 2021.02.02
(106)51.27﹣8.66﹣1.34 =51.27﹣(8.66+1.34), =51.27﹣10, =41.27;
(107)32.5÷(0.05×50) =32.5÷, =,
=13; (108) =,
=,
=; (109)
=,
=
(110)++﹣ (111)
﹣(
﹣
)
(112)﹣(+) (110)++﹣, =(+)+(﹣), =1﹣0, =1; (111)﹣(﹣),
=(+)﹣
,
=1﹣, =
; (112)﹣(+), =﹣, =﹣,
=
(113)
,欧阳索引创编 2021.02.02
欧阳索引创编 2021.02.02
=()+(﹣)+(﹣)+…+(﹣),
=+﹣+﹣+…+﹣,
=﹣,
=
.
(114)﹣(﹣), =﹣(﹣),
=
﹣
,
=; (115)﹣(﹣),
=
﹣
+,
=1; (116)+
+
+ =(+)+(+
)
=1+
=1
(117)5+1+3+2+6+4+, =(5+2+4)+(1+6)+(3+), =12+8+4, =24 (118)﹣+﹣,
=+﹣
﹣
, =(+)﹣(+
), =1﹣1,
欧阳索引创编 2021.02.02
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