1.小学五年级上册数学简便运算练习题 篇一
(1)8.1÷(0.9×0.3)=8.1÷0.27
=30
(2)12.39-(5.19+2.39)
=12.39-5.19-2.39
=12.39-2.39-5.19
=10-5.19
=4.81
(3)0.25×3.2×12.5
=0.25×4×(0.8×12.5)
=1×10
=10
2.小学五年级上册数学简便运算练习题 篇二
3.6÷[12×(0.53-0.45)]=3.6÷[12×0.08]
=3.6÷0.96
=3.75
(0.2+6.38)÷0.4
=6.58÷0.4
=16.45
12.8+5.6+17.2+5.4
=(12.8+17.2)+(5.6+5.4)
=30+11
=41
3.小学五年级上册数学简便运算练习题 篇三
0.36+9.6÷0.4=0.36+24
=24.36
27.98+2.9+4.02+3.1
=27.98+4.02+2.9+3.1
=(27.98+4.02)+(2.9+3.1)
=32+6
=38
0.31+0.31×99
=0.31×1+0.31×99
=0.31×(1+99)
=0.31×100
=31
4.小学五年级上册数学简便运算练习题 篇四
(1)0.25×32×12.5=(0.25×4)×(8×12.5)
=1×100
=100
(2)5.94÷[0.24×(6-3.5)]
=5.94÷[0.24×2.5]
=5.94÷0.6
=9.9
(3)51×0.51-0.51
=51×0.51-0.51×1
=(51-1)×0.51
=50×0.51
=25.5
5.小学五年级上册数学简便运算练习题 篇五
(1)4.2×1.5+7.36÷2.3=6.3+3.2
=9.5
(2)5.4×7.2+7.2×4.6
=7.2×(5.4+4.6)
=7.2×10
=72
(3)15.2-3.77-6.23
=15.2-(3.77+6.23)
=15.2-10
=5.2
6.小学五年级上册数学简便运算练习题 篇六
3.73+6.27÷0.3=3.73+20.9
=24.63
1.25×32
=1.25×8×4
=10×4
=40
1.2×[(6.7-5.2)÷0.25]
=1.2×[1.5÷0.25]
=1.2×6
=7.2
7.小学五年级上册数学简便运算练习题 篇七
(1)16.2-1.62+3.8-0.38=1.62×10-1.62+0.38×10-0.38
=1.62×(10-1)+0.38×(10-1)
=1.62×9+0.38×9
=14.58+3.42
=18
(2)8.6+1.25×8.6×8
=8.6+1.25×8×8.6
=8.6+10×8.6
=8.6+86
=94.6
(3)36÷[(17.5+1.22)÷26]
=36÷[18.72÷26]
=36÷0.72
=50
8.小学五年级上册数学简便运算练习题 篇八
(1)2.55÷1.7-0.9×0.3=1.5-0.27
=1.23
(2)1.02×(9.3-5.8)+2.5
=1.02×3.5+2.5
=3.57+2.5
=6.07
(3)0.76×4.8+4.8×0.24
=4.8×(0.76+0.24)
=4.8×1
=4.8
9.小学五年级上册数学简便运算练习题 篇九
3.14×32-3.14×22=3.14×(32-22)
=3.14×10
=31.4
4.6+1.28+5.4+0.72
=4.6+5.4+1.28+0.72
=(4.6+5.4)+(1.28+0.72)
=10+2
=12
61-3.3-7.7
=61-(3.3+7.7)
=61-11
=50
10.小学五年级上册数学简便运算练习题 篇十
18.5÷4÷0.25=18.5÷(4×0.25)
=18.5÷1
=18.5
78.4×101-78.4
=78.4×101-78.4×1
=78.4×(101-1)
=78.4×100
=7840
16.4×3.5+65×1.64
=16.4×3.5+6.5×16.4
=16.4×(3.5+6.5)
=16.4×10
=164