《2025年口算训练五年级数学上册人教版双色升级版》

答案： 0.5698，1.210，0.870，0.0312，15.400

$0.32×0.3=$
$0.11×6=$
$3.24×3=$
$11.3×2=$
$0.33×3=$
$43.3×0.1=$
$0.84×0.2=$
$0.06×0.3=$
$3.12×20=$
$0.016×2=$
$1.15×2=$
$0.34×0.2=$
$6.14×2=$
$80.2×2=$
$71.9×0.1=$
$6.13×0.2=$
$0.21×0.3=$
$12.8×0.02=$
$0.025×4=$
$89.5×0.2=$
$21.5×40=$

答案： 解析：这些题目都是基础的小数乘法口算题，主要考察小数乘法的计算方法和准确性。
答案：
$0.32 × 0.3 = 0.096$
$0.11 × 6 = 0.66$
$3.24 × 3 = 9.72$
$11.3 × 2 = 22.6$
$0.33 × 3 = 0.99$
$43.3 × 0.1 = 4.33$
$0.84 × 0.2 = 0.168$
$0.06 × 0.3 = 0.018$
$3.12 × 20 = 62.4$
$0.016 × 2 = 0.032$
$1.15 × 2 = 2.3$
$0.34 × 0.2 = 0.068$
$6.14 × 2 = 12.28$
$80.2 × 2 = 160.4$
$71.9 × 0.1 = 7.19$
$6.13 × 0.2 = 1.226$
$0.21 × 0.3 = 0.063$
$12.8 × 0.02 = 0.256$
$0.025 × 4 = 0.1$
$89.5 × 0.2 = 17.9$
$21.5 × 40 = 860$

$53.2×2=$106.4
$0.45×0.4=$0.18
$2.4×0.06=$0.144
$0.63×4=$2.52
$1.7×6=$10.2
$1.11×9=$9.99
$0.28×3=$0.84
$2.27×2=$4.54
$14.5×3=$43.5
$0.08×20=$1.6
$0.225×2=$0.45
$13×0.06=$0.78
$2.34×0.5=$1.17
$0.54×20=$10.8
$1.24×5=$6.2
$7.21×0.1=$0.721
$0.121×4=$0.484
$1.52×0.2=$0.304
$3.64×5=$18.2
$4.27×40=$170.8
$0.427×4=$1.708

答案： 解析：本题主要考查小数乘法的基本运算。
答案：
$53.2 × 2 = 106.4$
$0.45 × 0.4 = 0.18$
$2.4 × 0.06 = 0.144$
$0.63 × 4 = 2.52$
$1.7 × 6 = 10.2$
$1.11 × 9 = 9.99$
$0.28 × 3 = 0.84$
$2.27 × 2 = 4.54$
$14.5 × 3 = 43.5$
$0.08 × 20 = 1.6$
$0.225 × 2 = 0.45$
$13 × 0.06 = 0.78$
$2.34 × 0.5 = 1.17$
$0.54 × 20 = 10.8$
$1.24 × 5 = 6.2$
$7.21 × 0.1 = 0.721$
$0.121 × 4 = 0.484$
$1.52 × 0.2 = 0.304$
$3.64 × 5 = 18.2$
$4.27 × 40 = 170.8$
$0.427 × 4 = 1.708$