1.6×0.131.6 1.6×2.32.3
2.07÷3.11
0.55÷0.890.55 5.67÷0.1256.7÷1.2
5.4×1.6= 8.64÷1.6=
540×0.16= 864÷0.54=
千
百
十
个
●●●
●
●●●●
写作:
●●