456
Thử phiên bản mới
2024-05-21 21:07:04
\(129m321dm=161,1m\)
2024-05-21 21:06:10
\(11\times y+y:25\%+y\times5-5=1,5:0,01\)
\(11\times y+y:25\%+y\times5=150+5\)
\(11\times y+y:25\%+y\times5=155\)
\(11\times y+y\times4+y\times5=155\)
\(y\times\left(11+4+5\right)=155\)
\(y\times20=155\)
\(y=155:20\)
\(y=7,75\)
Vậy \(y=7,75\)
\(Ng\)
2024-05-21 20:51:56
\(\dfrac{3}{5}\) tấn 8 yến = 680 kg
7000 năm = 70 TK (is so long)
13.
998 x 28 + 998 x 71 + 998
= 998 x 28 + 998 x 71 + 998 x 1
= 998 x (28 + 71 + 1)
= 998 x 100
= 99800
200 x 1000 x 5
= (200 x 5) x 1000
= 1000 x 1000
= 1000000
2024-05-21 20:34:15
Yêu cầu để đúng lớp
890 : 0,9 + 15
\(\approx990,5\)
4
2024-05-21 20:19:43
\(300:3=100\)
\(24:3=8\)
\(8:4=2\)
\(72:9=8\)
2024-05-21 20:17:01
C
2024-05-21 20:12:45
Lỗi
2024-05-21 19:47:19
khó thế!
2024-05-21 19:40:13
4,7 x 12,5 - 4,7 x 11,5 - 24
= 4,7 x (12,5 - 11,5) - 24
= 4,7 x 1 - 24
= -19,3
(chưa học âm)
2024-05-21 19:37:52
169 + 296 x 2
= 169 + 592
= 761