(-67)+125+(-33)+75
86.(-108)+86.9-86
23.(-16)-23.84+300
235-5[(5^3-3^3):14]
95-(129-74):5+2022^0
Thực hiên phép tính sau
95-(129-74):5+2022^0
(-67)+125+(-33)+75
86.(-108)+86.9-86
95 - (129 - 74) : 5 + 2022⁰
= 95 - 55 : 5 + 1
= 95 - 11 + 1
= 95 - 10
= 85
-------
(-67) + 125 + (-33) + 75
= (125 + 75) - (67 + 33)
= 200 - 100
= 100
--------
86.(-108) + 86.9 - 86
= 86.(-108 + 9 - 1)
= 86.(-100)
= 8600
1 * 2 * 3 * 4 * 5 * 6 * 7 * 8 * 9 * 10 * 11 * 12 * 13 * 14 * 15 * 16 * 17 * 18 * 19 * 20 * 21 * 22 * 23 * 24 * 25 * 26 * 27 * 28 * 29 * 30 * 31 * 32 * 33 * 34 * 35 * 36 * 37 * 38 * 39 * 40 * 41 * 42 * 43 * 44 * 45 * 46 * 47 * 48 * 49 * 50 * 51 * 52 * 53 * 54 * 55 * 56 * 57 * 58 * 59 * 60 * 61 * 62 * 63 * 64 * 65 * 66 * 67 * 68 * 69 * 70 * 71 * 72 * 73 * 74 * 75 * 76 * 77 * 78 * 79 * 80 * 81 * 82 * 83 * 84 * 85 * 86 * 87 * 88 * 89 * 90 * 91 * 92 * 93 * 94 * 95 * 96 * 97 * 98 * 99 * 100 bằng bao nhiêu?
a,1/2*5/4+1/2*3/4+1/2
b,72/95*64/72*95/72*14/86*72/64*86/14
Tính thuận tiện,đây là *nhân nha
a) `1/2 xx 5/4 + 1/2 xx 3/4 + 1/2`
`=1/2 xx (5/4 + 3/4 + 1)`
`=1/2 xx 3`
`=3/2`
b) `72/95 xx 64/72 xx 95/72 xx 14/86 xx 72/64 xx 86/14`
`=(72xx64xx95xx14xx72xx86)/(95xx72xx72xx86xx64xx14)`
`= 1`.
b)=(72/95.95/72).(64/72.72/64).(14/86.86/14)
=1.1.1=1
Điền dấu >, <, = vào chỗ chấm
82 … 86 | 74 … 80 | 17 … 10 + 7 |
95 … 91 | 62 … 59 | 76 … 50 + 20 |
55 … 57 | 44 … 55 | 16 … 12 + 5 |
Lời giải chi tiết:
82 < 86 | 74 < 80 | 17 = 10 + 7 |
95 > 91 | 62 > 59 | 76 > 50 + 20 |
55 < 57 | 44 < 55 | 16 < 12 + 5 |
Sử dụng tính chất a.b +(-) a.c = a.(b+c)
1. (15 . 13 - 21) : 2 + 108
2. 4^2 . 444446 - 4^3 . 111111
3. (5^3015 - 5^3013) : 5^3013
4. 125 - [ 65 - (7 - 3)^3 ]
5. 123 . 456456 - 228. 246246
6. (548 . 13 + 1096) . 43 : 15 . 86
7. (3^13 : 99 - 15 . 3^14) : (3^17 : 3^2)
Cảm ơn !
1: =(195-21):2+108=174:2+108=87+108=195
2: \(=16\left(444446-444444\right)=16\cdot2=32\)
3: \(=\dfrac{5^{3015}}{5^{3013}}-\dfrac{5^{3013}}{5^{3013}}=25-1=24\)
4: \(=125-\left[65-4^3\right]=125-1=124\)
6: \(=8210\cdot43:15\cdot86=2024038.667\)
a, 5/11 + 1/2 + 2/5 + 6/11 + 3/4 + 16/25 + 5/16
b,19/4 + 37/100 + 1/8 + 132/25 + 5/2 + 37/12
c, 1313/1313 * 165165/143143 * 424242/151515
d, (121/122 * 123/125 + 127/129) * (1995/1996 * 17/16 - 21/25 : 16/17) * (42/30 * 75/23 - 19/23 * 210/38
ài 1: Tính giá trị của biểu thức sau:
1)2763 + 152 2)(-7) + (-14)
3)(-35) + (-9) 4)(-5) + (-248)
5)(-23) + 105 6)78 + (-123)
7)23 + (-13) 8)(-23) + 13
9)26 + (-6) 10) (-75) + 50
11)80 + (-220) 12) (-23) + (-13)
13)(-26) + (-6) 14 (-75) + (-50)
15)-18 + (-12) 16)17 + -33
17)(– 20) + -88 18) -3 + 5
19)-37 + 15 20)-37 + (-15)
21)(--32) + 5 22)(--22)+ (-16)
23)(-23) + 13 + ( - 17) + 57 24)14 + 6 + (-9) + (-14)
25) (-123) +-13+ (-7) 26) 0+45+(--455)+-796
câu nầy hơn khó nên mình ko giải đc bạn đợ mình giải đã
1) 2763 + 152 = 2951
2)(-7) + (-14) = -21
3)(-35) + (-9) =-44
4) (-5) + (-248) = -253
27 . 65 + 27 . 35 + 300
3838 : [( 190 - 6 . 5 mũ 2 ) : 4 + 3 }
2022 - x = 2021
26 + 14 : ( x - 5 ) = 33
2 . 3 mũ x + 38 = 92
a)\(27.65+27.35+300=27.\left(65+35\right)+300\)
\(=27.100+300=2700+300=3000\)
b)\(3838:\left[\left(190-6.5^2\right):4+3\right]\)
\(=3838:\left[\left(190-6.25\right):4+3\right]\)
\(=3838:\left[\left(190-150\right):4+3\right]\)
\(=3838:\left[40:4+3\right]=3838:\left[10+3\right]\)
\(=3838:13=\dfrac{3838}{13}\)
c)\(2022-x=2021\)
\(x=2022-2021=1\)
d)\(26+14:\left(x-5\right)=33\)
\(14:\left(x-5\right)=33-26=7\)
\(x-5=14+7=2\)
\(x=2+5=7\)
e)đề hỏi làm j thế bạn
Bài 1: Tính nhanh
a, 5/11 + 1/2 + 2/5 + 6/11 + 3/4 + 16/25 + 5/16
b,19/4 + 37/100 + 1/8 + 132/25 + 5/2 + 37/12
c, 1313/1313 * 165165/143143 * 424242/151515
d, (121/122 * 123/125 + 127/129) * (1995/1996 * 17/16 - 21/25 : 16/17) * (42/30 * 75/23 - 19/23 * 210/38)