36+48= 9.2-4.6= 560÷10= 12.5÷0.5=
- = 56× = 0.32= 2021×0.125×8=
47×× ×-÷ 1.25×32×
竹竿高(m)
2
3
6
影长(m)
1.6
2.4
4.8