\(18+4.\left(68-8^2\right)\)
\(=18+4.\left(68-64\right)\)
\(=18+4.4\)
\(=18+16\)
\(=34\)
\(18+4.\left(68-8^2\right)\)
\(=18+4.\left(68-64\right)\)
\(=18+4.4\)
\(=18+16\)
\(=34\)
1. x - 8 +32= 68
2. x +8+32=68
3. 98-x +34=43
4. 98+x-34=43
5. x :5:4=800
6. 18+x=384:8
7. (84,6-2 x x):3,02= 5,1
8. x x5= 120:6
9. (15x 24-x) :0,25= 100:0,25
a) 3.52 + 15.22 – 26:2 b) 53.2 – 100 : 4 + 23.5
c) 62 : 9 + 50.2 – 33.3 d) 32.5 + 23.10 – 81:3
e) 2345 – 1000 : [19 – 2(21 – 18)2] f) 128 – [68 + 8(37 – 35)2] : 4
g) 568 – {5[143 – (4 – 1)2] + 10} : 10 h) 107 – {38 + [7.32 – 24 : 6+(9
1, Tính nhanh
a) 136*68+16*272
b) 8*9*14+6*17*12+19*4*18
a) 2345 – 1000 : [19 – 2(21 – 18)2] b) 128 – [68 + 8(37 – 35)2] : 4 c) 568 – {5[143 – (4 – 1)2] + 10} : 10 d) 107 – {38 + [7.32 – 24 : 6+(9 – 7)3]}:15 e) 307 – [(180 – 160) : 22 + 9] : 2 f) 205 – [1200 – (42 – 2.3)3] : 40 g) 177 :[2.(42 – 9) + 32(15 – 10)] h) [(25 – 22.3) + (32.4 + 16)]: 5 i) 125(28 + 72) – 25(32.4 + 64) j) 500 – {5[409 – (23.3 – 21)2] + 103} : 15 |
Viết số mũ giùm mình ạ!
k) 2345 – 1000 : [19 – 2(21 – 18)2 ] l) 128 – [68 + 8(37 – 35)2 ] : 4
m) 568 – {5[143 – (4 – 1)2 ] + 10} : 10
n) 107 – {38 + [7.32 – 24 : 6+(9 – 7)3 ]}:15
o) 307 – [(180 – 160) : 22 + 9] : 2
p) 205 – [1200 – (42 – 2.3)3 ] : 40
q) 177 :[2.(42 – 9) + 32 (15 – 10)]
r) [(25 – 2 2 .3) + (32 .4 + 16)]: 5
s) 125(28 + 72) – 25(32 .4 + 64)
giúp mk
thực hiện phép tính
a, ( 26 - 6 ) . ( - 4 ) + 31 . ( - 7 - 13 )
b, - 18 ( 55 - 24 ) - 28 ( 44 - 68 )
tính nhanh
a, -4 . ( +3 ) . (-125) (+25) (-8)
Thực hiện phép tính:
a) 2010 - 2000 : [486 - 2(72 - 6)]
b) 2345 - 1000 : [19 - 2(21 - 18)2 ]
c) 128 - [68 + 8(37 - 35)2 ] : 4
d) 568 - {5[143 - (4 - 1)2 ] + 10} : 10
2345 - 1000 : [19 - 2(21 - 18)2 ]
128 - [68 + 8(37 - 35)2 ] :4
568 - {5[ 143 - (4 - 1)2 ] : 10
107 - {38 + [7.32 - 24 : 6+(9-7)3 ]} : 15
ai giai nhanh duoc tick