题文

口算 9.5×100= 1.25×8 0.25×0.9×4= 1.87×0= 3.5-1.5= 1.2×0.4= 3.6×0.5= 0.6×5= 0.24+0.6= 0.64×0.03= 7.8+2.2-1.5= 8×0.05= 0.125×8= 1.3×4= 0.4×0.6= 3×0.08= 0.35×2= 2.9×0.3= 10-0.9= 5.67×0= 0.8×0.01= 2.5×0.2= 2.4×0.3= 1.6×0.25= 0.17×0.3= 15×0.01= 10×0.07= 0.7×0.05= 0.2×0.05= 7.8×0.01= 0.2×0.26= 0.04×4= 12.4+2.1= 0.08×0.5= 0.14×4= 9×2.5+9×1.5= 1.8×0.5= 2.3×5= 0.3×3.6= 8×0.9+8×2.1= 2.5×4= 0.8+2.7×2= 0.05×7= 4.8+2.1+7.9= 3.4-1.8= 2.5+0.2×2= 0.02×0.1= 5.4-2.8= 0.3×0.2= 3.5×2×0.1= 0.3×0.3= 0×10.3×2.2= 0.12×0.7= 0.2×0.5= 0.92×0.4= 6.7-1.43= 1.2×4= 1.3×2= 1.2×0.3= 4.6+5.08=

题型：解答题  难度：中档

答案

9.5×100=950 1.25×8=10 0.25×0.9×4=0.9 1.87×0=0 3.5-1.5=2 1.2×0.4=0.48 3.6×0.5=1.8 0.6×5=3 0.24+0.6=0.84 0.64×0.03=0.0192 7.8+2.2-1.5=8.5 8×0.05=0.4 0.125×8=1 1.3×4=5.2 0.4×0.6=0.24 3×0.08=0.24 0.35×2=0.7 2.9×0.3=0.87 10-0.9=9.1 5.67×0=0 0.8×0.01=0.008 2.5×0.2=0.5 2.4×0.3=0.72 1.6×0.25=0.4 0.17×0.3=0.051 15×0.01=0.15 10×0.07=0.7 0.7×0.05=0.035 0.2×0.05=0.01 7.8×0.01=0.078 0.2×0.26=0.052 0.04×4=0.16 12.4+2.1=14.5 0.08×0.5=0.04 0.14×4=0.56 9×2.5+9×1.5=36 1.8×0.5=0.9 2.3×5=11.5 0.3×3.6=1.08 8×0.9+8×2.1=24 2.5×4=10 0.8+2.7×2=6.2 0.05×7=0.35 4.8+2.1+7.9=14.8 3.4-1.8=1.6 2.5+0.2×2=2.9 0.02×0.1=0.002 5.4-2.8=2.6 0.3×0.2=0.06 3.5×2×0.1=0.7 0.3×0.3=0.09 0×10.3×2.2=0 0.12×0.7=0.084 0.2×0.5=0.1 0.92×0.4=0.368 6.7-1.43=5.27 1.2×4=4.8 1.3×2=2.6 1.2×0.3=0.36 4.6+5.08=9.68

据专家权威分析，试题“口算9.5×100=1.25×80.25×0.9×4=1.87×0=3.5-1.5=1.2×0.4..”主要考查你对  小数的加法和减法  等考点的理解。关于这些考点的“档案”如下：

小数的加法和减法

考点名称：小数的加法和减法

• 学习目标：
  1、学习、探索小数加法和减法的计算方法。 
  2、理解小数点对齐的道理，掌握小数加法和减法的计算方法。

• 方法点拨：
  小数加法：小数点对齐，最低位加起，满十向前一位进一。 
  小数减法：小数点对齐，最低位减起，不够减借1还10。