精英家教网 > 小学数学 > 题目详情

口算
1.2÷0.2=
2.5×4=0.25+4=1.87×0=
3.5+0.5=1.2÷0.4=3.6÷4=0÷1.25=
0.12×6=0.64×0.03=5.8+4.2-6.5=7.8÷3=
0.125×8=2.8÷1.4=0.25÷0.5=7.21÷7=
0.35÷10=3.6÷3=6.3÷0.9=0.54÷6=
0.3×0.1=1.3÷2=0.4÷8=27.3÷3=
0.51÷0.3=15÷0.01=5÷10=0.7×12=
0.2×0.5=3.8×0.1=0.2×0.2=0.04×0.4=
12.4+7.6=8×0.5=0.72÷36=9×2.5+2.5=
1.8÷3=2.3÷2=6.5÷5=2.14÷2=
2.5×4=2.7×2=0.5×7=4.8+3.6+5.2=
3.4÷1.7=2.5+0.2=4.5÷5=5+2.8=
0.8×0.3=13.5×2×0=5.25÷5=4×2.2=
0.12×0.5=1.8×5=6.24÷2=2.83-1.43=
1.2+2.9=3.8÷2=1.32×3=4.6×7=

解:1.2÷0.2=62.5×4=100.25+4=4.251.87×0=0
3.5+0.5=41.2÷0.4=33.6÷4=0.90÷1.25=0
0.12×6=0.720.64×0.03=0.01925.8+4.2-6.5=3.57.8÷3=2.6
0.125×8=12.8÷1.4=20.25÷0.5=0.57.21÷7=1.03
0.35÷10=0.0353.6÷3=1.26.3÷0.9=70.54÷6=0.09
0.3×0.1=0.031.3÷2=0.650.4÷8=0.057.3÷3=2.433…
0.51÷0.3=1.715÷0.01=15005÷10=0.50.7×12=8.4
0.2×0.5=0.013.8×0.1=0.380.2×0.2=0.040.04×0.4=0.016
12.4+7.6=208×0.5=40.72÷36=0.029×2.5+2.5=25
1.8÷3=0.62.3÷2=1.156.5÷5=1.32.14÷2=1.07
2.5×4=102.7×2=5.40.5×7=3.54.8+3.6+5.2=13.6
3.4÷1.7=22.5+0.2=2.74.5÷5=0.95+2.8=7.8
0.8×0.3=0.2413.5×2×0=05.25÷5=1.054×2.2=8.8
0.12×0.5=0.061.8×5=96.24÷2=3.122.83-1.43=1.4
1.2+2.9=4.13.8÷2=1.91.32×3=3.964.6×7=32.2

分析:运用小数四则运算的计算法则直接计算即可.
点评:此题考查学生的计算能力,计算时要细心,同时注意个别题使用运算定律可以进行简算.
练习册系列答案
相关习题

科目:小学数学 来源: 题型:

口算
3.2×0.2             
1.4×0.4           3.3÷3          1.2÷0.3
2.5×0.4             1.5×2            0.7×7           7.3+0.3
0.53-0.3             1.8×0.5           0.9×0.01        0.23×3
(5)2-1.2               7.8÷6             8.4÷0.21         8.4÷0.7
5.6+3.6            9-2.35              0.56÷8         1.23×3
5.6÷0.4            4.5÷0.9            8.1×2          90÷3
1.23+3             5.6+1.23           4.5×2          5.6÷1.4
4.8÷1.2           7.2÷0.9           6.6÷1.1          7.2÷6
2.1÷3             0.6×0.5           3.23×2          1.8÷3
12.5÷0.1          0.32÷0.8          1.6+3.7           0.45×0.2
0.36÷1.8          0.4×0.5            8.4+5.6         8.4÷2.1
4.8÷0.08          4.8÷0.8            3+2.3           9.3÷3
0.01×8           7.31×100          0.09×6         0.8×0.6
1.25×8            3÷5               2.3+2.3         6.23+3.6

查看答案和解析>>

科目:小学数学 来源: 题型:

口算
1.2÷0.5=
3.6÷0.12= 0.33÷0.11=
0.125×8= 0.2×0.5= 3.8×0.1=

查看答案和解析>>

科目:小学数学 来源: 题型:

口算.
0.06×9
2.7+0.27 0.3×0.9 0.25×1.6
1.4÷2 0×0.465 0.7×0.7 2.1÷0.7
0.75÷1 0.1÷2 55+0.1 2.56÷0.256
0.25×4 2.25÷0.5 7.2÷0.6 2×7.85×0.5
0.48÷4 1.25×8 0.04÷2 0.9+2.45+2
1.6÷0.2 10÷0.25 0.01×0.2 8.94-(1.94-0.59)

查看答案和解析>>

科目:小学数学 来源: 题型:

口算
1.2÷0.2=
2.5×4= 0.25+4= 1.87×0=
3.5+0.5= 1.2÷0.4= 3.6÷4= 0÷1.25=
0.12×6= 0.64×0.03= 5.8+4.2-6.5= 7.8÷3=
0.125×8= 2.8÷1.4= 0.25÷0.5= 7.21÷7=
0.35÷10= 3.6÷3= 6.3÷0.9= 0.54÷6=
0.3×0.1= 1.3÷2= 0.4÷8=2 7.3÷3=
0.51÷0.3= 15÷0.01= 5÷10= 0.7×12=
0.2×0.5= 3.8×0.1= 0.2×0.2= 0.04×0.4=
12.4+7.6= 8×0.5= 0.72÷36= 9×2.5+2.5=
1.8÷3= 2.3÷2= 6.5÷5= 2.14÷2=
2.5×4= 2.7×2= 0.5×7= 4.8+3.6+5.2=
3.4÷1.7= 2.5+0.2= 4.5÷5= 5+2.8=
0.8×0.3= 13.5×2×0= 5.25÷5= 4×2.2=
0.12×0.5= 1.8×5= 6.24÷2= 2.83-1.43=
1.2+2.9= 3.8÷2= 1.32×3= 4.6×7=

查看答案和解析>>

同步练习册答案