Question

1.2km persegi+8ha=....m persegi
2.4are + 12ca=....dm persegi
3.100.000mm persegi+1600cm persegi=....dm persegi
4.100dm persegi+14m persegi+1hm persegi=.... dam persegi
5.luas kebun pak kardi 45m persegi.berapa are luas kebun pak kardi?
jawabnya pkai cara yah

Answer 1

1.
km>m
2 × 10000 = 20000 m persegi
ha>m
8 × 1000 = 8000
20000+8000 = 28000

2.
1 are = 100 m persegi
4 are =400 m persegi
1 ca = 1 m persegi
12 ca = 12 m persegi
400 m persegi + 12 m persegi
=412 m peesegi

3.
mm>dm
100.000÷1000
=100 dm persegi
1600÷10
=160 dm persegi
100 + 160 =
260 dm persegi

4.
dm>dam
100÷1000
=0.1 dam persegi
m>dam
14÷10
=1.4 dam
hm>dam
1×10
=10
0.1 + 1.4 + 10
=11.5 dam persegi
5.
m>are
1are = 100 m
45÷100
= 0.45 are