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x = 11
vd : m = 9
9 * 11 = 99
Vậy x = 11
k và kb mk nha mk hết lượt rồi
![](https://rs.olm.vn/images/avt/0.png?1311)
Ta có:
\(m.x=\overline{mm}\)
\(\Rightarrow x=\overline{mm}\)\(:m\)
\(\Rightarrow x=11\)
Vậy: x = 11
![](https://rs.olm.vn/images/avt/0.png?1311)
![](https://rs.olm.vn/images/avt/0.png?1311)
giúp mình bạn nhé\n\n75km 234m =……..km\n9dm 8cm 6mm=……dm\n3m 6dm 4cm=……..m\n6dm 6mm=……..dm\n2,538m=…….m…..dm……cm………mm\n2,538m=…….m……cm…….mm\n2,538m=…….m…..mm\n7,306m=……m…….dm…..mm\n7,306m=……m…….cm……mm\n7,306m=……m…….mm\n7,306m=……mm\n2,586km=…….km……m\n2,586km=…….m\n8,2km=…….km……..m\n8,2km=…….m\n4m 25cm=……m\n9dm 8cm 5mm=…………dm\n2m 6dm 3cm=………m\n4dm 4mm=………..dm\n1,105kg=………g\n5,6kg……….g\n9,05kg=………g\n0,01kg=……g\n0,003kg=…….g\n0,078kg=………g\n\n\
toán 5
![](https://rs.olm.vn/images/avt/0.png?1311)
9m 6cm=906cm 709cm=709cm
38=38 000 mm 12 000mm=12m
16m 5mm=16 005mm 21 075mm=21m 75mm
8009m=8km 9m 5075m=5km 75m
902mm=9cm 2mm 3009m=3km 9m
19 000mm=19m
![](https://rs.olm.vn/images/avt/0.png?1311)
\(\times+\left(\times+1\right)+\cdot\cdot\cdot+\left(\times+10\right)=660\)
\(\Rightarrow11\times+\left(1+2+\cdot\cdot\cdot+10\right)=660\)
\(\Rightarrow11\times+55=660\)
\(\Rightarrow11\times=660-55\)
\(\Rightarrow11\times=605\)
\(\Rightarrow\times=55\)
![](https://rs.olm.vn/images/avt/0.png?1311)
0,5 dm = 0,05 m = 500 mm
2,1 cm = 0,021 m = 0,21 dm
0,05 m = 50 mm = 5 cm
4,52 mm = 0,0452 dm = 0,452 cm
Học vui nha !
^^
m * x = m *m
=> x =m *m : m
=> x = m
Vậy x=m
x = 11
ví dụ : m = 99
vậy x = 11