《2025年口算训练五年级数学上册人教版双色升级版》

$8.1÷3=$
$5.6÷2=$
$0.9÷30=$
$7.2÷3=$
$9.5÷5=$
$3.6÷4=$
$2.4÷0.6=$
$7.8÷2=$
$2.7÷0.9=$
$0.69÷3=$
$0.45÷9=$
$0.33÷0.3=$
$0.68÷4=$
$0.92÷0.2=$
$4.2÷0.7=$
$7.5÷0.5=$
$5.4÷2.7=$
$2.8÷0.4=$
$1.28÷0.4=$
$8.7÷0.03=$
$87÷0.03=$

答案： 解析：这些题目都是基础的除法运算，涉及到小数和整数的除法。需要掌握小数除法的计算方法，注意小数点位置。
答案：
$8.1÷3=2.7$
$5.6÷2=2.8$
$0.9÷30=0.03$
$7.2÷3=2.4$
$9.5÷5=1.9$
$3.6÷4=0.9$
$2.4÷0.6=4$
$7.8÷2=3.9$
$2.7÷0.9=3$
$0.69÷3=0.23$
$0.45÷9=0.05$
$0.33÷0.3=1.1$
$0.68÷4=0.17$
$0.92÷0.2=4.6$
$4.2÷0.7=6$
$7.5÷0.5=15$
$5.4÷2.7=2$
$2.8÷0.4=7$
$1.28÷0.4=3.2$
$8.7÷0.03=290$
$87÷0.03=2900$

$0.72÷0.36÷0.1=$20
$0.21×3+0.42=$1.05
$0.91÷(4.4-3.4)=$0.91
$5.6÷0.2÷100=$0.28
$(2.2+1.1)÷0.3=$11
$16×0.25÷4=$1
$1.25×0.8÷0.5=$2
$8.6÷2+8.6=$12.9
$(6.4+2.9)÷0.3=$31
$2.75÷5+4.5=$5.05
$(4.82-3.37)÷5=$0.29
$(5.6+4.4)÷0.02=$500
$2.98×100÷2=$149
$3.6×0.5÷0.3=$6
$0.08÷0.04×0.1=$0.2
$0.66÷(0.48÷0.24)=$0.33
$2.96÷(2.5×0.04)=$29.6
$700×(0.55÷0.11)=$3500
$7.21×(0.39÷0.13)=$21.63
$4.4×2.5=$11
$3.24÷0.4÷0.3=$27

答案： 解析：这些题目主要考查了小数的四则运算，包括乘除法和加减法，以及运算的优先级。
答案：
$0.72 ÷ 0.36 ÷ 0.1 = 20$
$0.21 × 3 + 0.42 = 1.05$
$0.91 ÷ (4.4 - 3.4) = 0.91$
$5.6 ÷ 0.2 ÷ 100 = 0.28$
$(2.2 + 1.1) ÷ 0.3 = 11$
$16 × 0.25 ÷ 4 = 1$
$1.25 × 0.8 ÷ 0.5 = 2$
$8.6 ÷ 2 + 8.6 = 12.9$
$(6.4 + 2.9) ÷ 0.3 = 31$
$2.75 ÷ 5 + 4.5 = 5.05$
$(4.82 - 3.37) ÷ 5 = 0.29$
$(5.6 + 4.4) ÷ 0.02 = 500$
$2.98 × 100 ÷ 2 = 149$
$3.6 × 0.5 ÷ 0.3 = 6$
$0.08 ÷ 0.04 × 0.1 = 0.2$
$0.66 ÷ (0.48 ÷ 0.24) = 0.33$
$2.96 ÷ (2.5 × 0.04) = 29.6$
$700 × (0.55 ÷ 0.11) = 3500$
$7.21 × (0.39 ÷ 0.13) = 21.63$
$4.4 × 2.5 = 11$
$3.24 ÷ 0.4 ÷ 0.3 = 27$