口诀：高变低乘进率(点右移)，低变高除以进率(点左移)
进率：千米/吨=1000，米/元=100，分米=10
一、基础换算 (直接写得数)
336分 = (3.36)元
6m = (0.006)km
97.5t = (97500)kg
6.18dm² = (618)cm²
63dm² = (0.63)m²
42.3元 = (4230)分
83.6km = (83600)m
8.88m = (888)cm
530dm = (53)m
3.96kg = (3960)g
0.18kg = (180)g
9.02m = (902)cm
305cm² = (3.05)dm²
667cm = (66.7)dm
7.31kg = (7310)g
二、综合改写 (注意进率变化)
2.42元 = (242)分
207g = (0.207)kg
3.3dm = (33)cm
170cm = (1.7)m
530分 = (5.3)元
5.86dm = (58.6)cm
5.6km = (5600)m
349cm = (34.9)dm
140dm² = (1.4)m²
770dm = (77)m
284分 = (2.84)元
150dm² = (1.5)m²
7.66dm = (76.6)cm
185dm² = (1.85)m²
150cm² = (1.5)dm²