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
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
= 53 + 25
= 125 + 32
= 157
d , 164 . 53 + 47 . 164
= 164 . ( 53 + 47 )
= 164 . 100
= 1640
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
a,
204 - 84 : 12
= 204 - 7
= 197
b,
15 . 23 + 4 . 32 - 5 .7
= (15 . 23) + (4 . 32) - (5 . 7)
= 120 + 36 - 35
= 156 - 35
= 121
c, 56 : 53 + 23 . 22
= (56 : 53 ) + ( 23 + 22)
= 125 + 12
= 137
d, 164 . 53 + 47 .164
= 164 . (53 + 47)
= 164 . 100
= 16400
56 : 53 + 23 . 22
= 53 + 25
= 125 + 32
= 157
204-84:12=204-7=197
15.2^3+4.3^2-5.7=15.8+4.9-5.7=120+36-35=121
5^6:5^3+2^3.2^2=(5^6:5^3)+(2^3.2^2)=5^3+2^5=125+32=157
=164.(53+47)=164.100=16400
Thực hiện phép tính:
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
= 121
c)
5\(^6\): 5\(^3\)+ 2\(^3\). 2\(^2\)
= 5\(^{6-3}\) + 2\(^{3+2}\)
= 5\(^3\)+2\(^5\)
= 125 + 32
= 157
d)
164 . 53 + 47. 164
= 164 . ( 53+ 47 )
= 164. 100
= 16400
Ủng hộ nha! :)
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
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
HT