五年级上数学小数乘除法口算天天练

口算专项训练（1）0.4 × 4 = 2× 4.4 = 3.9 × 2 =2 × 2.8 = 1.6 × 3= 7.4 × 3=2.4 × 3= 3.7 × 3= 7.1 × 3 =2.2 × 4 =