1
把一条3m长的绳子平均分成10段,每段长多少米?如果平均分成5段呢?
3÷10 = 0.3(m) 3÷ 5 = 0.6(m)
3 10
3÷10 =
3÷ 5 =
3 5
(m)
0.3=
0.6=