求七年级有理数加,减,乘,除,乘方五则混合运算计算题,要难一点的,越多越好,只要计算题。谢谢~

要计算题,不要太简单,五则运算,要有难度的,跪求!

(1) (-9)-(-13)+(-20)+(-2)
(2) 3+13-(-7)/6
(3) (-2)-8-14-13
(4) (-7)×(-1)/7+8
(5) (-11)×4-(-18)/18
(6) 4+(-11)-1/(-3)
(7) (-17)-6-16/(-18)
(8) 5/7+(-1)-(-8)
(9) (-1)×(-1)+15+1
(10) 3-(-5)×3/(-15)
(11) 6×(-14)-(-14)+(-13)
(12) (-15)×(-13)-(-17)-(-4)
(13) (-20)/13/(-7)+11
(14) 8+(-1)/7+(-4)
(15) (-13)-(-9)×16×(-12)
(16) (-1)+4×19+(-2)
(17) (-17)×(-9)-20+(-6)
(18) (-5)/12-(-16)×(-15)
(19) (-3)-13×(-5)×13
(20) 5+(-7)+17-10
(21) (-10)-(-16)-13×(-16)
(22) (-14)+4-19-12
(23) 5×13/14/(-10)
(24) 3×1×17/(-10)
(25) 6+(-12)+15-(-15)
(26) 15/9/13+(-7)
(27) 2/(-10)×1-(-8)
(28) 11/(-19)+(-14)-5
(29) 19-16+18/(-11)
(30) (-1)/19+(-5)+1
(31) (-5)+19/10×(-5)
(32) 11/(-17)×(-13)×12
(33) (-8)+(-10)/8×17
(34) 7-(-12)/(-1)+(-12)
(35) 12+12-19+20
(36) (-13)×(-11)×20+(-4)
(37) 17/(-2)-2×(-19)
(38) 1-12×(-16)+(-9)
(39) 13×(-14)-15/20
(40) (-15)×(-13)-6/(-9)
(41) 15×(-1)/12+7
(42) (-13)+(-16)+(-14)-(-6)
(43) 14×12×(-20)×(-13)
(44) 17-9-20+(-10)
(45) 12/(-14)+(-14)+(-2)
(46) (-15)-12/(-17)-(-3)
(47) 6-3/9/(-8)
(48) (-20)×(-15)×10×(-4)
(49) 7/(-2)×(-3)/(-14)
(50) 13/2×18×(-7)
(51) 13×5+6+3
(52) (-15)/5/3+(-20)
(53) 19×4+17-4
(54) (-11)-(-6)×(-4)×(-9)
(55) (-16)+16-(-8)×(-13)
(56) 16/(-1)/(-10)/(-20)
(57) (-1)-(-9)-9/(-19)
(58) 13×20×(-13)×4
(59) 11×(-6)-3+18
(60) (-20)+(-12)+(-1)+(-12)
(61) (-19)-3×(-13)×4
(62) (-13)/3-5×8
(63) (-15)/1+17×(-18)
(64) (-13)/3/19/8
(65) (-3)/(-13)/20×5
(66) 3/12/(-18)-18
(67) 5×(-19)/13+(-6)
(68) 4+4×(-19)-11
(69) (-2)+17-5+(-1)
(70) 9+(-3)×19×(-19)
(71) (-12)-(-6)+17/2
(72) 15×(-5)-(-3)/5
(73) (-10)×2/(-1)/4
(74) (-8)×16/(-6)+4
(75) 2-11+12+10
(76) (-3)+(-20)×(-7)×(-9)
(77) (-15)+8-17/7
(78) (-14)×10+18×2
(79) (-7)+2-(-17)×19
(80) (-7)/18/1+1
(81) 11/(-9)-(-16)/17
(82) 15+5×6-(-8)
(83) (-13)×(-18)+18/(-6)
(84) 11-(-1)/11×(-6)
(85) (-4)+(-12)+19/6
(86) (-18)/(-1)/(-19)+2
(87) 9×(-8)×(-6)/11
(88) 20×(-3)×(-5)+1
(89) (-18)-2+(-11)/20
(90) 15×1+4×17
(91) 1-10+(-14)/(-1)
(92) 10+(-4)×(-19)+(-12)
(93) 15/14/5×7
(94) 8+(-13)/3+1
(95) (-14)+6+(-2)×(-14)
(96) (-5)/(-13)/4+7
(97) (-15)/(-2)/(-12)+(-2)
(98) (-17)-(-20)-20×(-10)
(99) (-7)-10-13/3
(100) (-20)+(-18)+11+9

答案:
1 -18
2 103/6
3 -37
4 9
5 -43
6 -(20/3)
7 -(199/9)
8 54/7
9 17
10 2
11 -83
12 216
13 1021/91
14 27/7
15 -1741
16 73
17 127
18 -(2885/12)
19 842
20 5
21 214
22 -41
23 -(13/28)
24 -(51/10)
25 24
26 -(268/39)
27 39/5
28 -(372/19)
29 15/11
30 -(77/19)
31 -(29/2)
32 1716/17
33 -(117/4)
34 -17
35 25
36 2856
37 59/2
38 184
39 -(731/4)
40 587/3
41 23/4
42 -37
43 43680
44 -22
45 -(118/7)
46 -(192/17)
47 145/24
48 -12000
49 -(3/4)
50 -819
51 74
52 -21
53 89
54 205
55 -104
56 -(2/25)
57 161/19
58 -13520
59 -51
60 -45
61 137
62 -(133/3)
63 -321
64 -(13/456)
65 3/52
66 -(1297/72)
67 -(173/13)
68 -83
69 9
70 1092
71 5/2
72 -(372/5)
73 5
74 76/3
75 13
76 -1263
77 -(66/7)
78 -104
79 318
80 11/18
81 -(43/153)
82 53
83 231
84 115/11
85 -(77/6)
86 20/19
87 432/11
88 301
89 -(411/20)
90 83
91 5
92 74
93 3/2
94 14/3
95 20
96 369/52
97 -(21/8)
98 203
99 -(64/3)
100 -18
"/
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第1个回答  2011-10-03
有理数的加减混合运算
(1) (-9)-(-13)+(-20)+(-2)
(2) 3+13-(-7)/6
(3) (-2)-8-14-13
(4) (-7)×(-1)/7+8
(5) (-11)×4-(-18)/18
(6) 4+(-11)-1/(-3)
(7) (-17)-6-16/(-18)
(8) 5/7+(-1)-(-8)
(9) (-1)×(-1)+15+1
(10) 3-(-5)×3/(-15)
(11) 6×(-14)-(-14)+(-13)
(12) (-15)×(-13)-(-17)-(-4)
(13) (-20)/13/(-7)+11
(14) 8+(-1)/7+(-4)
(15) (-13)-(-9)×16×(-12)
(16) (-1)+4×19+(-2)
(17) (-17)×(-9)-20+(-6)
(18) (-5)/12-(-16)×(-15)
(19) (-3)-13×(-5)×13
(20) 5+(-7)+17-10
(21) (-10)-(-16)-13×(-16)
(22) (-14)+4-19-12
(23) 5×13/14/(-10)
(24) 3×1×17/(-10)
(25) 6+(-12)+15-(-15)
(26) 15/9/13+(-7)
(27) 2/(-10)×1-(-8)
(28) 11/(-19)+(-14)-5
(29) 19-16+18/(-11)
(30) (-1)/19+(-5)+1
(31) (-5)+19/10×(-5)
(32) 11/(-17)×(-13)×12
(33) (-8)+(-10)/8×17
(34) 7-(-12)/(-1)+(-12)
(35) 12+12-19+20
(36) (-13)×(-11)×20+(-4)
(37) 17/(-2)-2×(-19)
(38) 1-12×(-16)+(-9)
(39) 13×(-14)-15/20
(40) (-15)×(-13)-6/(-9)
(41) 15×(-1)/12+7
(42) (-13)+(-16)+(-14)-(-6)
(43) 14×12×(-20)×(-13)
(44) 17-9-20+(-10)
(45) 12/(-14)+(-14)+(-2)
(46) (-15)-12/(-17)-(-3)
(47) 6-3/9/(-8)
(48) (-20)×(-15)×10×(-4)
(49) 7/(-2)×(-3)/(-14)
(50) 13/2×18×(-7)
(51) 13×5+6+3
(52) (-15)/5/3+(-20)
(53) 19×4+17-4
(54) (-11)-(-6)×(-4)×(-9)
(55) (-16)+16-(-8)×(-13)
(56) 16/(-1)/(-10)/(-20)
(57) (-1)-(-9)-9/(-19)
(58) 13×20×(-13)×4
(59) 11×(-6)-3+18
(60) (-20)+(-12)+(-1)+(-12)
(61) (-19)-3×(-13)×4
(62) (-13)/3-5×8
(63) (-15)/1+17×(-18)
(64) (-13)/3/19/8
(65) (-3)/(-13)/20×5
(66) 3/12/(-18)-18
(67) 5×(-19)/13+(-6)
(68) 4+4×(-19)-11
(69) (-2)+17-5+(-1)
(70) 9+(-3)×19×(-19)
(71) (-12)-(-6)+17/2
(72) 15×(-5)-(-3)/5
(73) (-10)×2/(-1)/4
(74) (-8)×16/(-6)+4
(75) 2-11+12+10
(76) (-3)+(-20)×(-7)×(-9)
(77) (-15)+8-17/7
(78) (-14)×10+18×2
(79) (-7)+2-(-17)×19
(80) (-7)/18/1+1
(81) 11/(-9)-(-16)/17
(82) 15+5×6-(-8)
(83) (-13)×(-18)+18/(-6)
(84) 11-(-1)/11×(-6)
(85) (-4)+(-12)+19/6
(86) (-18)/(-1)/(-19)+2
(87) 9×(-8)×(-6)/11
(88) 20×(-3)×(-5)+1
(89) (-18)-2+(-11)/20
(90) 15×1+4×17
(91) 1-10+(-14)/(-1)
(92) 10+(-4)×(-19)+(-12)
(93) 15/14/5×7
(94) 8+(-13)/3+1
(95) (-14)+6+(-2)×(-14)
(96) (-5)/(-13)/4+7
(97) (-15)/(-2)/(-12)+(-2)
(98) (-17)-(-20)-20×(-10)
(99) (-7)-10-13/3
(100) (-20)+(-18)+11+9

答案:
1 -18
2 103/6
3 -37
4 9
5 -43
6 -(20/3)
7 -(199/9)
8 54/7
9 17
10 2
11 -83
12 216
13 1021/91
14 27/7
15 -1741
16 73
17 127
18 -(2885/12)
19 842
20 5
21 214
22 -41
23 -(13/28)
24 -(51/10)
25 24
26 -(268/39)
27 39/5
28 -(372/19)
29 15/11
30 -(77/19)
31 -(29/2)
32 1716/17
33 -(117/4)
34 -17
35 25
36 2856
37 59/2
38 184
39 -(731/4)
40 587/3
41 23/4
42 -37
43 43680
44 -22
45 -(118/7)
46 -(192/17)
47 145/24
48 -12000
49 -(3/4)
50 -819
51 74
52 -21
53 89
54 205
55 -104
56 -(2/25)
57 161/19
58 -13520
59 -51
60 -45
61 137
62 -(133/3)
63 -321
64 -(13/456)
65 3/52
66 -(1297/72)
67 -(173/13)
68 -83
69 9
70 1092
71 5/2
72 -(372/5)
73 5
74 76/3
75 13
76 -1263
77 -(66/7)
78 -104
79 318
80 11/18
81 -(43/153)
82 53
83 231
84 115/11
85 -(77/6)
86 20/19
87 432/11
88 301
89 -(411/20)
90 83
91 5
92 74
93 3/2
94 14/3
95 20
96 369/52
97 -(21/8)
98 203
99 -(64/3)
100 -18
"/"是除号!!!
第2个回答  2011-10-15
1. 3/7 × 49/9 - 4/3
2. 8/9 × 15/36 + 1/27
3. 12× 5/6 – 2/9 ×3
4. 8× 5/4 + 1/4
5. 6÷ 3/8 – 3/8 ÷6
6. 4/7 × 5/9 + 3/7 × 5/9
7. 5/2 -( 3/2 + 4/5 )
8. 7/8 + ( 1/8 + 1/9 )
9. 9 × 5/6 + 5/6
10. 3/4 × 8/9 - 1/3
11. 7 × 5/49 + 3/14
12. 6 ×( 1/2 + 2/3 )
13. 8 × 4/5 + 8 × 11/5
14. 31 × 5/6 – 5/6
15. 9/7 - ( 2/7 – 10/21 )
16. 5/9 × 18 – 14 × 2/7
17. 4/5 × 25/16 + 2/3 × 3/4
18. 14 × 8/7 – 5/6 × 12/15
19. 17/32 – 3/4 × 9/24
20. 3 × 2/9 + 1/3
21. 5/7 × 3/25 + 3/7
22. 3/14 ×× 2/3 + 1/6
23. 1/5 × 2/3 + 5/6
24. 9/22 + 1/11 ÷ 1/2
25. 5/3 × 11/5 + 4/3
26. 45 × 2/3 + 1/3 × 15
27. 7/19 + 12/19 × 5/6
28. 1/4 + 3/4 ÷ 2/3
29. 8/7 × 21/16 + 1/2
30. 101 × 1/5 – 1/5 × 21
31.50+160÷40 (58+370)÷(64-45)
32.120-144÷18+35
33.347+45×2-4160÷52
34(58+37)÷(64-9×5)
35.95÷(64-45)
36.178-145÷5×6+42 420+580-64×21÷28
37.812-700÷(9+31×11) (136+64)×(65-345÷23)
38.85+14×(14+208÷26)
39.(284+16)×(512-8208÷18)
40.120-36×4÷18+35
41.(58+37)÷(64-9×5)
42.(6.8-6.8×0.55)÷8.5
43.0.12× 4.8÷0.12×4.8
44.(3.2×1.5+2.5)÷1.6 (2)3.2×(1.5+2.5)÷1.6
45.6-1.6÷4= 5.38+7.85-5.37=
46.7.2÷0.8-1.2×5= 6-1.19×3-0.43=
47.6.5×(4.8-1.2×4)= 0.68×1.9+0.32×1.9
48.10.15-10.75×0.4-5.7
49.5.8×(3.87-0.13)+4.2×3.74
50.32.52-(6+9.728÷3.2)×2.5
51.[(7.1-5.6)×0.9-1.15] ÷2.5
52.5.4÷[2.6×(3.7-2.9)+0.62]
53.12×6÷(12-7.2)-6 (4)12×6÷7.2-6
抱歉,就这么多了。
第3个回答  2011-10-06
1) (-9)-(-13)+(-20)+(-2)
(2) 3+13-(-7)/6
(3) (-2)-8-14-13
(4) (-7)×(-1)/7+8
(5) (-11)×4-(-18)/18
(6) 4+(-11)-1/(-3)
(7) (-17)-6-16/(-18)
(8) 5/7+(-1)-(-8)
(9) (-1)×(-1)+15+1
(10) 3-(-5)×3/(-15)
(11) 6×(-14)-(-14)+(-13)
(12) (-15)×(-13)-(-17)-(-4)
(13) (-20)/13/(-7)+11
(14) 8+(-1)/7+(-4)
(15) (-13)-(-9)×16×(-12)
(16) (-1)+4×19+(-2)
(17) (-17)×(-9)-20+(-6)
(18) (-5)/12-(-16)×(-15)
(19) (-3)-13×(-5)×13
(20) 5+(-7)+17-10
(21) (-10)-(-16)-13×(-16)
(22) (-14)+4-19-12
(23) 5×13/14/(-10)
(24) 3×1×17/(-10)
(25) 6+(-12)+15-(-15)
(26) 15/9/13+(-7)
(27) 2/(-10)×1-(-8)
(28) 11/(-19)+(-14)-5
(29) 19-16+18/(-11)
(30) (-1)/19+(-5)+1
(31) (-5)+19/10×(-5)
(32) 11/(-17)×(-13)×12
(33) (-8)+(-10)/8×17
(34) 7-(-12)/(-1)+(-12)
(35) 12+12-19+20
(36) (-13)×(-11)×20+(-4)
(37) 17/(-2)-2×(-19)
(38) 1-12×(-16)+(-9)
(39) 13×(-14)-15/20
(40) (-15)×(-13)-6/(-9)
(41) 15×(-1)/12+7
(42) (-13)+(-16)+(-14)-(-6)
(43) 14×12×(-20)×(-13)
(44) 17-9-20+(-10)
(45) 12/(-14)+(-14)+(-2)
(46) (-15)-12/(-17)-(-3)
(47) 6-3/9/(-8)
(48) (-20)×(-15)×10×(-4)
(49) 7/(-2)×(-3)/(-14)
(50) 13/2×18×(-7)
(51) 13×5+6+3
(52) (-15)/5/3+(-20)
(53) 19×4+17-4
(54) (-11)-(-6)×(-4)×(-9)
(55) (-16)+16-(-8)×(-13)
(56) 16/(-1)/(-10)/(-20)
(57) (-1)-(-9)-9/(-19)
(58) 13×20×(-13)×4
(59) 11×(-6)-3+18
(60) (-20)+(-12)+(-1)+(-12)
(61) (-19)-3×(-13)×4
(62) (-13)/3-5×8
(63) (-15)/1+17×(-18)
(64) (-13)/3/19/8
(65) (-3)/(-13)/20×5
(66) 3/12/(-18)-18
(67) 5×(-19)/13+(-6)
(68) 4+4×(-19)-11
(69) (-2)+17-5+(-1)
(70) 9+(-3)×19×(-19)
(71) (-12)-(-6)+17/2
(72) 15×(-5)-(-3)/5
(73) (-10)×2/(-1)/4
(74) (-8)×16/(-6)+4
(75) 2-11+12+10
(76) (-3)+(-20)×(-7)×(-9)
(77) (-15)+8-17/7
(78) (-14)×10+18×2
(79) (-7)+2-(-17)×19
(80) (-7)/18/1+1
(81) 11/(-9)-(-16)/17
(82) 15+5×6-(-8)
(83) (-13)×(-18)+18/(-6)
(84) 11-(-1)/11×(-6)
(85) (-4)+(-12)+19/6
(86) (-18)/(-1)/(-19)+2
(87) 9×(-8)×(-6)/11
(88) 20×(-3)×(-5)+1
(89) (-18)-2+(-11)/20
(90) 15×1+4×17
(91) 1-10+(-14)/(-1)
(92) 10+(-4)×(-19)+(-12)
(93) 15/14/5×7
(94) 8+(-13)/3+1
(95) (-14)+6+(-2)×(-14)
(96) (-5)/(-13)/4+7
(97) (-15)/(-2)/(-12)+(-2)
(98) (-17)-(-20)-20×(-10)
(99) (-7)-10-13/3
(100) (-20)+(-18)+11+9

答案:
1 -18
2 103/6
3 -37
4 9
5 -43
6 -(20/3)
7 -(199/9)
8 54/7
9 17
10 2
11 -83
12 216
13 1021/91
14 27/7
15 -1741
16 73
17 127
18 -(2885/12)
19 842
20 5
21 214
22 -41
23 -(13/28)
24 -(51/10)
25 24
26 -(268/39)
27 39/5
28 -(372/19)
29 15/11
30 -(77/19)
31 -(29/2)
32 1716/17
33 -(117/4)
34 -17
35 25
36 2856
37 59/2
38 184
39 -(731/4)
40 587/3
41 23/4
42 -37
43 43680
44 -22
45 -(118/7)
46 -(192/17)
47 145/24
48 -12000
49 -(3/4)
50 -819
51 74
52 -21
53 89
54 205
55 -104
56 -(2/25)
57 161/19
58 -13520
59 -51
60 -45
61 137
62 -(133/3)
63 -321
64 -(13/456)
65 3/52
66 -(1297/72)
67 -(173/13)
68 -83
69 9
70 1092
71 5/2
72 -(372/5)
73 5
74 76/3
75 13
76 -1263
77 -(66/7)
78 -104
79 318
80 11/18
81 -(43/153)
82 53
83 231
84 115/11
85 -(77/6)
86 20/19
87 432/11
88 301
89 -(411/20)
90 83
91 5
92 74
93 3/2
94 14/3
95 20
96 369/52
97 -(21/8)
98 203
99 -(64/3)
100 -18
"/"是除号!!!
第4个回答  2011-10-15
(1) (-9)-(-13)+(-20)+(-2)
(2) 3+13-(-7)/6
(3) (-2)-8-14-13
(4) (-7)×(-1)/7+8
(5) (-11)×4-(-18)/18
(6) 4+(-11)-1/(-3)
(7) (-17)-6-16/(-18)
(8) 5/7+(-1)-(-8)
(9) (-1)×(-1)+15+1
(10) 3-(-5)×3/(-15)
(11) 6×(-14)-(-14)+(-13)
(12) (-15)×(-13)-(-17)-(-4)
(13) (-20)/13/(-7)+11
(14) 8+(-1)/7+(-4)
(15) (-13)-(-9)×16×(-12)
(16) (-1)+4×19+(-2)
(17) (-17)×(-9)-20+(-6)
(18) (-5)/12-(-16)×(-15)
(19) (-3)-13×(-5)×13
(20) 5+(-7)+17-10
(21) (-10)-(-16)-13×(-16)
(22) (-14)+4-19-12
(23) 5×13/14/(-10)
(24) 3×1×17/(-10)
(25) 6+(-12)+15-(-15)
(26) 15/9/13+(-7)
(27) 2/(-10)×1-(-8)
(28) 11/(-19)+(-14)-5
(29) 19-16+18/(-11)
(30) (-1)/19+(-5)+1
(31) (-5)+19/10×(-5)
(32) 11/(-17)×(-13)×12
(33) (-8)+(-10)/8×17
(34) 7-(-12)/(-1)+(-12)
(35) 12+12-19+20

求七年级有理数加,减,乘,除,乘方五则混合运算计算题,要难一点的,越多...
(1) (-9)-(-13)+(-20)+(-2)(2) 3+13-(-7)\/6 (3) (-2)-8-14-13 (4) (-7)×(-1)\/7+8 (5) (-11)×4-(-18)\/18 (6) 4+(-11)-1\/(-3)(7) (-17)-6-16\/(-18)(8) 5\/7+(-1)-(-8)(9) (-1)×(-1)+15+1 (10) 3-(-5)×3\/(-15)(11) 6...

有理数加法,减法,乘法,除法,乘方20道算术题。(带答案)。谢谢,本人资金...
50+160÷40 120-144÷18+35 347+45×2-4160÷52 (58+37)÷(64-9×5)95÷(64-45)178-145÷5×6+42 812-700÷(9+31×11)85+14×(14+208÷26)(284+16)×(512-8208÷18)120-36×4÷18+35 (58+37)÷(64-9×5)(6.8-6.8×0.55)÷8.5 0.12× 4.8÷0...

求30道有理数混合运算含乘方.乘.除.加.减.带过程和答案再加分._百度...
求30道有理数混合运算含乘方.乘.除.加.减.带过程和答案再加分. 10  我来答 分享 微信扫一扫 网络繁忙请稍后重试 新浪微博 QQ空间 举报 浏览10 次 可选中1个或多个下面的关键词,搜索相关资料。也可直接点“搜索资料”搜索整个问题。 有理数 混合运算 乘方 搜索资料 本地图片 图片链接 提交回答 匿...

初一有理数加,减,乘,除,乘方,绝对值混合运算40道(有难度的)
(3)(+ )-5+(- )-(+ )+(- )= ;(4)(-2.6)-(4.7)-(+0.5)+(+2.4)+(-3.2)= ;2.计算:(1)(-6)-(+6)-(-7) (2)0-(+8)+(-27)-(+5)(3) (- )+(+0.25)+(- )-(+ ) (4) (+3 )+(+4 )-(+1 )+(-...

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初一数学有理数的混合运算练习 练习一(B级) (一)计算题: (1)23+(-73) (2)(-84)+(-49) (3)7+(-2.04) (4)4.23+(-7.57) (5)(-7\/3)+(-7\/6) (6)9\/4+(-3\/2) (7)3.75+(2.25)+5\/4 (8)-3.75+(+5\/4)+(-1.5) (二)用简便方法计算: (1)(-17\/4)+(-10\/3)+(+13\/3)+(11...

有理数加减乘除乘方混合运算练习题50道最难的
原式=18-(-3)×(-1\/3)[(-3)^2-(-5)^2]÷(-2)原式=(9-25)÷(-2)(-2)^3×0.5-(-1.6)^2÷(-2)^2原式=(-8)×(1\/2)-(-8\/5)^2÷4 (-3\/4)×(-8+2\/3-1\/3)原式=(-3\/4)×(-8+1\/3)16÷(-2)^3-(-1\/8)×(-4)原式=16÷...

初一有理数的混合运算
初一有理数的混合运算 记住运算顺序就可以了:先算乘方,再算乘除,最后算加减.有括号先算括号,乘除在一起按顺序算。有理数的加法运算窍门:1. 同号两数相加,取相同的符号,并把绝对值相加.2. 异号两数相加,取绝对值较大的加数的符号,并用较大的绝对值减去较小的绝对值。有理数的减法运算窍门...

初一有理数数学计算题
5.2-8.2-4.0=-7 有理数的加减混合运算:12-(-18)+(-7)=23 0.25+(-3.25)+(+4.75)+(-6.75)=-5 3-4+9-5+1=4 有理数的乘法:+4*(-5)=-20 (-0.125)*(-8)=1 有理数的加减乘混合运算:25*0.75-(-25)*0.5+25*(-0.25)=25 (3-4-5)*(-5)=30 (0.125...

有理数乘加乘减的混合运算
有理数乘加乘减的混合运算例子演示78×35+78×19-78×20 解题思路:四则运算规则(按顺序计算,先算乘除后算加减,有括号先算括号,有乘方先算乘方)即脱式运算(递等式计算)需在该原则前提下进行 解题过程:78×35+78×19-78×20 =78×(35+19-20)=78×34 =2652 ...

有理数的加法,减法,乘法,除法,运算乘方各20道题,共120道题、(带答案...
1+1=2,2+2=4 3-0=3,8-1=7 5×6=30,7×9=63 9-2=7,5-2=3

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