204-84:12
15.23+4.32-5.7
56:53+23.22
164.53+47.164
a)204-84:12
b)15.2(mũ3)+4.3(mũ 2)-5.7
c)5(mũ6):5(mũ3)+2(mũ3).2(mũ2)
d)164.53+47.164
a) \(204-84:12=204-7=197\)
b) \(15.2^3+4.3^2-5.7=15.8+4.9+5.7=120+36+35=156+35=191\)
c) \(5^6:5^3+2^3.2^2=5^3+2^5=125+32=157\)
d) \(164.53+47.164=164.\left(53+47\right)=164.100=16400\)
_Chúc bạn học tốt_
Thực hiện các phép tính :
a) \(204-84:12\)
b) \(15.2^3+4.3^2-5.7\)
c) \(5^6:5^3+2^3.2^2\)
d) \(164.53+47.164\)
a)
204 - 84:12 = 204 - 7 = 197
b)
15.23 + 4.32 - 5.7 = 15.8 + 4.9 – 5.7 = 120 + 36 - 35 = 121
c) Áp dụng:
am . an = am+n
am : an = am-n
56:53 + 23.22 = 53 + 25 = 125 + 32 = 157
d)
164.53 + 47.164 = 164(53 + 47) = 164.100 = 16400
a) 204 - 84 : 12
= 204 - 7 = 197
b) 15.23 + 4.32 - 5.7
= 15.8 + 4.9 - 35
= 120 + 36 - 35
= 156 - 35
= 121
c) 56 : 53 + 23.22
= 56 - 3 + 23 + 2
= 53 + 25
= 125 + 32
= 157
d) 164.53 + 47.164
= 164.( 53 + 47 )
= 164.100
= 16400
a) 204 - 84 : 12
= 204 - 7 = 197
b) 15.23 + 4.32 - 5.7
= 15.8 + 4.9 - 35
= 120 + 36 - 35
= 156 - 35
= 121
c) 56 : 53 + 23.22
= 56 - 3 + 23 + 2
= 53 + 25
= 125 + 32
= 157
d) 164.53 + 47.164
= 164.( 53 + 47 )
= 164.100
= 16400
thực hiện phép tính
a) 204-84:12
b) 15.23+4.32-5.7
c) 56:53+23.22
d) 164.53+47.164
tìm x
219-7(x+1)=100
(3x-6).3=34
a)
204-84:12
=204-7
=197
b)
15.23+4.32-5.7
=15.8+4.9-5.7
=120+36-35
=156-35
=121
c)
56:53+23.22
=56-3+23+2
=53+25
=125+32
=157
d)
164.53+47.164
=(164.(53+47)
=164.100
=16400
tìm x:
219-7(x+1)=100
=>7(x+1)=219-100
=>7(x+1)=119
=>x+1=119:7
=>x+1=17
=>x=17-1
=>x=16
(3x-6).3=34
=>(3x-6).3=81
=>3x-6=81:3
=>3x-6=27
=>3x=27+6
=>3x=33
=>x=33:3
=>x=11
nhác động não bài dễ thế này ko chịu suy nghĩ cứ ỷ lại olm
a) 204 - 84 : 12 = 204 - 7
= 197
b) 15.23 + 4.32 - 5.7 = 15.8 + 4.9 - 35
= 120 + 36 - 35
= 121
c) 56: 53 + 23.22 = 53 + 25
= 125 + 32
= 157
d) 164.53 + 47.164 = 164.(53 + 47)
= 164. 100
= 16400
tim x
219 - 7(x + 1) = 100
7(x + 1) = 219 - 100
7(x + 1) = 119
x + 1 = 119 : 7
x + 1 = 17
x = 17 - 1
x = 16
Vay x = 16
(3x - 6).3 = 34
3x - 6 = 34 : 3
3x - 6 = 33
3x - 6 = 27
3x = 27 + 6
3x = 33
x = 33 : 3
x = 11
Vay x = 11
1. Thực hiện các phép tính
204 - 84 : 12
5^6 : 5^3 + 2^3. 2^2
15 . 2^3 + 4 . 3^2 - 5 . 7
164 . 53 + 47 . 164
208 - 84: 12= 208- 7= 201
5^6 : 5^3 + 2^3.2^2= 5^3 + 2^5= 125 + 32= 1577
15 . 2^3 + 4 . 3^2 - 5.7= 15 . 8 + 4. 9 - 5.7= 120 + 36 - 35=156 - 35=121
164 . 53 + 47 . 164= 164.(53 + 47)=164. 100=16400
a)204-84:12=204-7=197
b)56:53+23.22=(5:5)9+25=9+32=41
c)15.23+4.32-5.7=15.8+4.9-35=120+36-35=121
d)164.53+47.164=(53+47).164=100.164=16400
a) 204 - 84 : 12
= 204 - 7
= 197
b) 15 . 23 + 4 . 32 - 5 . 7
= 15 . 8 + 4 . 9 - 35
= 121.
c) 56 : 55 + 23 . 22
= 5 + 25
= 37.
d) 164 . 53 + 47 . 164
= 164. (53 + 47)
= 164 . 100
= 16400.
Thực hiện các phép tính :
a , 204 - 84 : 12
b , 15 . 23 + 4 . 32 - 5 . 7
c , 56 : 53 + 23 . 22
d , 164 . 53 + 47 . 164
a)
204 - 84 : 12
= 204 - ( 84 : 12 )
= 204 - 7
= 107
b)
15 . 23 + 4 . 32 - 5 . 7
= 15 . 8 + 4 . 9 - 5 . 7
= 120 + 36 - 35
= 156 - 35
= 121
c)
56 : 53 + 23 . 22
= 5(6-3) + 2(3+2)
= 53 + 25
= 125 + 32
= 157
d) 164 . 53 + 47 . 164
= 164 . ( 53 + 47 )
= 164 . 100
= 16400
a) 204 - 84 : 12
= 204 - 7
= 197
b) 15 . 23 + 4 . 32 - 5 . 7
= 15 . 8 + 4 . 9 - 35
= 120 + 36 - 35
= 156 - 35
= 121
c) 56 : 53 + 23 . 22
= 56 - 3 + 23 + 2
= 53 + 25
= 125 + 32
= 157
d) 164 . 53 + 47 . 164
= 164 ( 53 + 47 )
= 164 . 100
= 16400
204-84:22
12 . 53 + 53 . 172 - 53 . 84 Tinh nhanh
12.53+53.172 - 53.84
= 53.(12+172 - 84)
= 53.100
= 5300
\(12.53+53.172-53.84\)
\(=53.\left(12+172\right)-53.84=53.184-53.84\)
\(=53.\left(184-84\right)=53.100=53.10^2\)
\(=53.10.10=530.10\)
\(=5300\)
12 . 53 + 53 . 172 - 53 . 84
= 53 . ( 12+172-84 )
= 53 . 100
= 5300
1 Tính
a 204 - 84 : 12
b 5 mũ 6 : 5 mũ 3 + 2 mũ 3 x 2 mũ 2
c 15 x 2 mũ 3 + 4 x 3 mũ 2 - 5 x 7
d 164 x 53 + 47 x 164
Ai nhanh đc tích nhiều nhé!
a, 204-84:12 b,56:53+23.22
=204-7 =53+25
=197 =125+32
=157
c,15.23+4.32-5.7 d,164.53+47.164
=15.42+4.32-35 =164(53+47)
=4.(60+9)-35 =164.100
=4.69-35 =16400
=276-35
=341