人教版四年级数学下册小数加减法简便计算练习题135.docx
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人教版四年级数学下册小数加减法简便计算练习题135
一、填一填。
6.8+5.83+3.2=6.8+____+5.83
(6.12+3.23)+2.77=____+(____+____)
47.28-3.6-6.4=____〇(____〇____)
二、下面各题怎样简便怎样计算。
8.99+5.2+3.87.29-2.7-2.3
4.45-3.4+2.559.9+0.28+0.72+19.1
3.8+2.5+6.87.84-2.28-2.72
32+5.8+9.1+595.79+4.76+2.24
2.74+3.34+4.262.05+0.8+3.95+9.2
1.2+2.45+3.55+8.86.11+7.37-2.11
一、填一填。
8.2+4.53+1.8=8.2+____+4.53
(1.87+4.42)+3.58=____+(____+____)
41.96-4.8-5.2=____〇(____〇____)
二、下面各题怎样简便怎样计算。
8.38+5.6+1.48.68-2.3-3.7
6.53-2.9+1.479.6+0.48+0.52+19.4
5.6+3.3+5.18.44-0.59-6.41
15+4.2+8.5+124.49+5.52+3.48
4.77+4.03+5.233.45+7.7+5.55+2.3
5.2+0.09+6.91+2.87.92+0.87-2.92
一、填一填。
6.7+1.28+3.3=6.7+____+1.28
(2.41+3.62)+3.38=____+(____+____)
34.02-6.5-3.5=____〇(____〇____)
二、下面各题怎样简便怎样计算。
6.82+5.7+4.39.37-1.8-3.2
4.73-3.1+5.276.2+0.99+0.01+23.8
6.4+6.6+1.79.66-3.35-0.65
28+9.5+4.2+518.06+5.81+4.19
2.96+9.85+4.040.96+4.5+9.04+5.5
1.8+4.29+2.71+4.27.59+3.19-4.59
一、填一填。
8.8+6.41+1.2=8.8+____+6.41
(9.95+4.72)+4.28=____+(____+____)
27.64-6.3-3.7=____〇(____〇____)
二、下面各题怎样简便怎样计算。
4.38+3.6+5.46.63-2.9-3.1
6.08-2.9+3.9215.9+0.03+0.97+14.1
4.4+3.5+5.89.32-0.03-6.97
76+7.5+3.4+588.05+2.81+7.19
1.52+6.59+5.481.63+2.8+6.37+7.2
0.6+2.09+6.91+8.48.85+6.25-6.85
一、填一填。
6.4+5.26+3.6=6.4+____+5.26
(1.45+4.97)+2.03=____+(____+____)
44.33-1.2-8.8=____〇(____〇____)
二、下面各题怎样简便怎样计算。
5.34+5.2+1.86.12-2.4-1.6
4.07-1.4+5.9314.1+0.75+0.25+11.9
7.6+5.6+5.57.61-0.45-4.55
72+2.8+4.6+896.86+4.52+4.48
5.57+4.67+4.435.82+4.9+3.18+5.1
4.6+1.22+3.78+4.49.04+7.82-7.04
一、填一填。
7.5+2.66+2.5=7.5+____+2.66
(4.92+3.66)+6.34=____+(____+____)
14.98-5.2-4.8=____〇(____〇____)
二、下面各题怎样简便怎样计算。
4.43+1.4+6.66.45-2.1-1.9
4.37-1.5+5.6317.5+0.15+0.85+6.5
2.9+4.5+2.49.89-1.85-3.15
38+8.7+5.6+363.86+3.87+6.13
4.21+9.42+2.792.11+8.4+7.89+1.6
0.8+1.42+8.58+9.27.99+6.83-2.99
一、填一填。
2.9+1.83+7.1=2.9+____+1.83
(4.99+3.84)+4.16=____+(____+____)
38.74-5.6-4.4=____〇(____〇____)
二、下面各题怎样简便怎样计算。
9.89+4.9+3.17.21-2.3-3.7
4.55-1.2+5.454.8+0.78+0.22+24.2
2.5+5.7+2.27.57-1.94-3.06
12+1.2+2.6+953.94+0.58+8.42
5.13+7.37+4.873.21+6.1+6.79+3.9
1.2+4.35+3.65+6.87.79+7.06-6.79
一、填一填。
2.3+3.41+7.7=2.3+____+3.41
(5.45+4.69)+5.31=____+(____+____)
34.69-8.1-1.9=____〇(____〇____)
二、下面各题怎样简便怎样计算。
8.34+5.1+4.98.55-1.4-3.6
6.76-2.7+3.249.7+0.48+0.52+19.3
7.7+6.6+1.48.74-0.77-5.23
75+5.9+9.4+678.28+3.27+2.73
3.06+3.34+5.940.38+4.2+6.62+5.8
5.4+4.97+5.03+3.69.46+5.43-5.46
一、填一填。
7.7+9.79+2.3=7.7+____+9.79
(1.54+3.69)+2.31=____+(____+____)
36.75-8.6-1.4=____〇(____〇____)
二、下面各题怎样简便怎样计算。
5.81+2.1+5.99.56-2.2-2.8
4.41-3.9+2.5917.1+0.52+0.48+2.9
8.5+9.5+6.88.95-0.54-4.46
99+5.2+1.1+270.65+1.69+8.31
0.54+9.03+8.461.87+6.2+4.13+3.8
1.4+0.35+5.65+7.66.39+1.55-4.39
一、填一填。
1.9+8.79+8.1=1.9+____+8.79
(1.51+4.45)+2.55=____+(____+____)
36.79-1.7-8.3=____〇(____〇____)
二、下面各题怎样简便怎样计算。
6.52+3.5+3.59.78-2.9-1.1
6.56-1.7+0.4417.5+0.36+0.64+7.5
3.3+5.2+3.58.42-1.98-2.02
25+1.6+9.6+798.71+5.75+2.25
3.04+6.56+3.961.49+5.8+4.51+4.2
2.3+1.32+4.68+4.78.26+2.71-5.26
一、填一填。
7.6+4.44+2.4=7.6+____+4.44
(1.21+4.37)+2.63=____+(____+____)
10.72-6.7-3.3=____〇(____〇____)
二、下面各题怎样简便怎样计算。
9.05+1.2+6.86.58-2.1-2.9
4.14-3.1+4.8613.4+0.56+0.44+14.6
8.6+3.2+8.47.58-1.14-2.86
93+5.9+2.9+577.29+4.47+5.53
3.83+4.02+3.171.31+2.3+8.69+7.7
0.8+4.14+2.86+8.28.54+0.72-6.54
一、填一填。
3.7+4.72+6.3=3.7+____+4.72
(6.11+4.04)+4.96=____+(____+____)
26.82-6.5-3.5=____〇(____〇____)
二、下面各题怎样简便怎样计算。
5.65+4.5+3.59.07-2.2-1.8
4.33-1.9+5.678.7+0.81+0.19+18.3
4.5+9.6+7.19.02-3.51-1.49
51+9.8+6.5+744.56+2.65+5.35
1.42+1.67+4.582.21+9.1+4.79+0.9
0.1+0.02+9.98+6.97.71+0.72-6.71
一、填一填。
6.4+8.85+3.6=6.4+____+8.85
(2.09+2.91)+6.09=____+(____+____)
17.39-3.7-6.3=____〇(____〇____)
二、下面各题怎样简便怎样计算。
9.13+3.2+3.87.87-1.7-2.3
6.95-1.6+3.0510.8+0.77+0.23+11.2
7.9+7.1+4.78.94-0.82-6.18
99+4.1+6.1+879.85+5.45+4.55
2.93+6.58+3.070.46+9.8+8.54+0.2
0.9+2.37+2.63+5.19.93+4.95-7.93
一、填一填。
6.1+3.14+3.9=6.1+____+3.14
(9.69+2.71)+7.29=____+(____+____)
28.03-8.1-1.9=____〇(____〇____)
二、下面各题怎样简便怎样计算。
4.14+1.6+8.48.24-3.4-1.6
6.41-1.5+3.5913.7+0.53+0.47+14.3
3.8+4.4+6.88.28-1.39-4.61
75+2.1+5.7+967.35+4.37+4.63
2.96+8.49+5.041.16+3.8+7.84+6.2
5.7+4.52+1.48+2.39.74+6.93-6.74
一、填一填。
4.8+9.16+5.2=4.8+____+9.16
(3.31+4.99)+1.01=____+(____+____)
19.12-3.8-6.2=____〇(____〇____)
二、下面各题怎样简便怎样计算。
7.65+5.2+2.86.57-2.8-2.2
4.57-2.3+5.4310.8+0.46+0.54+10.2
9.3+3.7+6.37.04-0.38-3.62
87+2.8+8.4+184.03+4.32+2.68
4.81+1.58+2.195.62+2.6+0.38+7.4
0.7+1.27+5.73+8.36.99+5.36-2.99
一、填一填。
4.4+5.39+5.6=4.4+____+5.39
(9.56+4.25)+3.75=____+(____+____)
42.29-3.9-6.1=____〇(____〇____)
二、下面各题怎样简便怎样计算。
5.01+2.9+4.16.16-2.6-2.4
4.55-1.9+2.4516.1+0.38+0.62+3.9
2.4+9.1+3.89.46-2.85-3.15
82+9.4+7.8+152.61+0.95+9.05
3.15+8.22+6.852.64+3.4+5.36+6.6
3.4+0.94+9.06+6.67.75+4.05-6.75
一、填一填。
3.6+4.21+6.4=3.6+____+4.21
(3.82+3.16)+6.84=____+(____+____)
43.04-8.5-1.5=____〇(____〇____)
二、下面各题怎样简便怎样计算。
2.71+1.4+5.68.73-3.6-2.4
5.61-2.1+1.396.2+0.32+0.68+14.8
5.8+8.1+9.28.57-2.36-4.64
26+7.9+2.9+386.03+4.49+2.51
5.83+1.55+4.170.79+2.7+6.21+7.3
5.9+1.34+6.66+4.19.82+9.77-7.82
一、填一填。
6.6+4.03+3.4=6.6+____+4.03
(4.75+4.71)+3.29=____+(____+____)
35.96-4.7-5.3=____〇(____〇____)
二、下面各题怎样简便怎样计算。
6.17+5.6+4.48.18-2.4-1.6
5.29-2.3+4.717.3+0.57+0.43+14.7