\(\dfrac{1}{100}m^2=.....ha\)
\(\dfrac{80}{800}\)km2
\(\dfrac{7}{10}\)ha = m2 \(\dfrac{5}{4}\)km2 = ha
\(\dfrac{3}{100}\)ha = m2 \(\dfrac{4}{5}\)km2 = m2
7/10 ha = 7000 m2
5/4 km2 = 125 ha
3/100 ha = 300 m2
4/5 km2 = 800 000 m2
\(\dfrac{7}{10}\)ha = 7000 m2 \(\dfrac{5}{4}\)km2 = 125 ha
\(\dfrac{3}{100}\)ha = 300 m2 \(\dfrac{4}{5}\)km2 = 800000 m2
8ha = .....m2 \(\dfrac{1}{2}\) ha = ........m2
15ha = .........m2 \(\dfrac{1}{100}\) ha = ...........m2
20ha = .........m2 800 000m2=..........ha
600 000m2 = ......ha
\(8ha=80000m^2\)
\(\dfrac{1}{2}ha=5000m^2\)
\(15ha=150000ha\)
\(\dfrac{1}{100}ha=100m^2\)
\(20ha=200000m^2\)
\(800000m^2=80ha\)
\(600000m^2=60ha\)
Điền dấu >,<,=
\(3\dfrac{1}{2}\)km2 .......350ha 55 000m2 ........... \(5\dfrac{1}{2}\) ha
\(3\dfrac{1}{2}km^2=\left(3+\dfrac{1}{2}\right)km^2=\dfrac{7}{2}km^2=350ha\)
\(3\dfrac{1}{2}km^2=350ha\)
_______
\(55000m^2=5,5ha\)
\(5\dfrac{1}{2}ha=\left(5+\dfrac{1}{2}\right)ha=5,5ha\)
\(55000m^2=5\dfrac{1}{2}ha\)
Điền dấu >,<,=
2ha 8dm2 .......... 280dam2 8ha 15m2 .......... 80 150m2
\(7\dfrac{1}{2}\) ha ........... 7ha 12dam2 9km2 5ha ............ 905ha
\(7\dfrac{33}{100}\) ha ....... 6ha 3dam2 4km2 7ha ........... \(4\dfrac{7}{10}\) km2
\(2h8dm^2< 280dam^2\)
\(8ha15m^2< 80150m^2\)
\(7\dfrac{1}{2}ha>7ha12dam^2\)
\(9km^25ha=905ha\)
\(7\dfrac{33}{100}ha>6ha3dam^2\)
\(4km^27ha< 4\dfrac{7}{10}km^2\)
bài 1:
7 ha=......m2
16ha=....m2
1km2=.....ha
\(\dfrac{1}{10}\)ha=.....m2
\(\dfrac{1}{4}\)ha=.....m2
\(\dfrac{1}{100}\)ha=.....m2
Bài 2:đúng ghi đ sai ghi s
54km2<540ha
71ha>80000m2
5m28dm2=5\(\dfrac{8}{10}\)m2
Bài 1
7ha=70000m2
16ha=160000m2
1km2=100ha
\(\dfrac{1}{10}\)ha=1000m2
\(\dfrac{1}{4}\)ha=2500m2
\(\dfrac{1}{100}\)ha=100m2
Bài 2
54km2<540ha S
71ha>80000m2 Đ
5m28dm2=\(5\dfrac{8}{10}\)m2 S
Viết số thích hợp vào chỗ chấm:
60 000m2 = ... ha 1800ha = ... km2
800 000m2 = ... ha 27000 ha = ... km2
6 ha 18 km2
80 ha 270 km2
hok tốt
BT2: Tính nhanh
9) \(\dfrac{98}{99}+\dfrac{89}{100}+\dfrac{100}{101}.\left(\dfrac{1}{12}-\dfrac{1}{3}+\dfrac{1}{4}\right)\)
10) \(\left(\dfrac{78}{79}+\dfrac{79}{80}+\dfrac{80}{81}\right).\left(\dfrac{1}{5}+\dfrac{1}{6}+\dfrac{3}{10}-\dfrac{2}{3}\right)\)
Giúp mk nha!
9: \(=1-\dfrac{1}{99}+1-\dfrac{1}{100}+\dfrac{100}{101}\cdot\dfrac{1-4+3}{12}=2-\dfrac{199}{9900}=\dfrac{19601}{9900}\)
10: \(=\left(\dfrac{78}{79}+\dfrac{79}{80}+\dfrac{80}{81}\right)\cdot\dfrac{6+5+9-20}{30}=0\)
1/10 ha=.........m2
1/4 ha=...........m2
1/100 km2=.......ha
2/5 km2= ..................ha
1/10 ha = 10m2
1/4 ha = 40 m2
1/100 km2 = 1 ha
2/5 km2 = 40 ha
Chúc bạn thi học kì 1 thật tốt
1/10 ha = 10 m2
1/4 ha = 40 m2
1/100 km2 = 1 ha
2/5 km2 = 40 ha
có "nhàm" thì mới có ăn ! ;p
1/4 ha =..........m2, 1/100 km2 =............ha,2/5 km2 =.............ha
trả lời giúp mik nha cảm ơn
1/4 ha=2500 m2
1/100 km2=01ha
2/5 km2=40ha
\(\frac{1}{4}\) ha = 2500 m2
\(\frac{1}{100}\)km2 = 1 ha
\(\frac{2}{5}\) km2 = 40 ha
1/4 ha = 2500 m2
1/100 km2 =1 ha
2/5 km2 = 40 ha