人教版五年级上册100道口算题大全（全册齐全）

0.7x3 =7.4x9 =7x0.1 =64x0.7=0.3x50=3.7x80=6.05x3 =0.07x9=0.06x59 =30x0.81=0.09x61 =200x0.3 =900x0.9=