人教版四年级数学下册小数加减法简便计算练习题144.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144
一、填一填。
9.3+1.34+0.7=9.3+____+1.34
(2.41+4.23)+5.77=____+(____+____)
17.37-5.5-4.5=____〇(____〇____)
二、下面各题怎样简便怎样计算。
8.57+3.1+6.97.79-1.6-4.4
6.13-1.3+2.8717.7+0.31+0.69+8.3
7.1+1.9+5.57.53-3.85-2.15
41+8.2+7.5+734.62+2.64+7.36
4.79+1.96+3.214.23+1.8+3.77+8.2
3.9+3.48+2.52+6.16.25+4.23-2.25
一、填一填。
1.6+2.19+8.4=1.6+____+2.19
(9.42+4.18)+4.82=____+(____+____)
26.38-5.5-4.5=____〇(____〇____)
二、下面各题怎样简便怎样计算。
4.56+2.5+6.57.85-3.7-0.3
4.22-2.2+2.785.5+0.37+0.63+20.5
6.2+9.7+8.97.13-3.08-2.92
68+8.5+6.8+939.41+4.54+2.46
2.82+5.01+4.180.32+7.9+7.68+2.1
0.7+3.12+3.88+6.37.08+5.83-6.08
一、填一填。
3.2+6.38+6.8=3.2+____+6.38
(5.37+3.87)+6.13=____+(____+____)
23.14-6.9-3.1=____〇(____〇____)
二、下面各题怎样简便怎样计算。
1.83+5.3+4.78.17-2.5-1.5
6.29-1.9+2.7113.9+0.18+0.82+11.1
8.3+7.3+1.67.27-0.16-5.84
86+1.1+1.6+170.42+2.89+3.11
0.25+1.58+6.753.23+8.3+4.77+1.7
0.6+0.08+5.92+5.49.77+4.34-4.77
一、填一填。
6.8+9.42+3.2=6.8+____+9.42
(1.84+3.06)+3.94=____+(____+____)
26.67-3.4-6.6=____〇(____〇____)
二、下面各题怎样简便怎样计算。
2.92+4.1+2.97.49-3.3-1.7
5.88-2.8+2.1216.2+0.02+0.98+11.8
4.9+1.2+2.49.25-0.95-3.05
36+6.5+5.7+195.55+5.41+0.59
3.99+2.04+5.015.38+7.1+0.62+2.9
0.4+2.35+3.65+7.67.41+4.73-5.41
一、填一填。
6.5+6.25+3.5=6.5+____+6.25
(9.57+3.47)+5.53=____+(____+____)
12.53-5.5-4.5=____〇(____〇____)
二、下面各题怎样简便怎样计算。
8.36+2.9+5.17.43-1.8-2.2
4.77-3.7+3.234.2+0.47+0.53+20.8
5.8+1.5+8.49.42-0.48-4.52
81+7.5+7.8+319.04+0.42+7.58
4.28+5.64+2.723.87+8.2+3.13+1.8
5.9+4.44+0.56+0.19.73+7.82-8.73
一、填一填。
7.1+8.11+2.9=7.1+____+8.11
(6.17+2.97)+7.03=____+(____+____)
29.67-8.9-1.1=____〇(____〇____)
二、下面各题怎样简便怎样计算。
3.81+3.5+5.59.49-1.1-2.9
6.43-3.5+2.5719.5+0.36+0.64+1.5
7.3+1.1+5.49.36-0.58-4.42
46+9.5+1.8+565.49+4.43+4.57
4.46+0.35+5.542.64+2.1+4.36+7.9
2.2+0.16+4.84+6.88.57+4.47-6.57
一、填一填。
5.1+4.82+4.9=5.1+____+4.82
(4.04+2.19)+6.81=____+(____+____)
13.17-2.4-7.6=____〇(____〇____)
二、下面各题怎样简便怎样计算。
9.83+4.2+2.89.81-2.1-2.9
4.36-1.5+2.6413.4+0.57+0.43+14.6
7.2+5.9+1.38.71-1.65-5.35
79+5.4+4.8+825.76+5.13+3.87
2.05+9.34+5.954.91+3.2+5.09+6.8
5.7+2.88+7.12+3.39.38+0.97-5.38
一、填一填。
9.4+3.58+0.6=9.4+____+3.58
(8.85+2.85)+6.15=____+(____+____)
27.57-8.2-1.8=____〇(____〇____)
二、下面各题怎样简便怎样计算。
7.45+3.1+3.99.73-3.5-2.5
4.85-2.8+4.1519.6+0.67+0.33+5.4
7.5+7.4+4.18.59-3.74-0.26
73+1.3+3.2+540.64+2.05+7.95
5.84+9.56+0.164.63+2.6+2.37+7.4
2.3+2.88+5.12+6.78.01+0.43-4.01
一、填一填。
1.8+5.35+8.2=1.8+____+5.35
(7.06+2.27)+6.73=____+(____+____)
15.52-5.2-4.8=____〇(____〇____)
二、下面各题怎样简便怎样计算。
6.57+5.8+3.27.04-3.3-2.7
4.73-2.3+4.273.9+0.67+0.33+18.1
8.5+2.5+2.38.16-1.21-4.79
74+9.2+1.5+572.27+2.67+3.33
1.16+6.68+4.840.76+8.3+6.24+1.7
3.5+4.37+0.63+3.58.21+7.06-3.21
一、填一填。
6.2+8.57+3.8=6.2+____+8.57
(8.14+1.36)+7.64=____+(____+____)
16.95-5.2-4.8=____〇(____〇____)
二、下面各题怎样简便怎样计算。
7.81+2.5+6.56.11-2.9-1.1
5.66-3.2+2.343.4+0.08+0.92+22.6
2.7+5.6+1.57.35-0.54-4.46
63+5.7+7.6+731.98+1.52+6.48
2.52+2.03+7.482.21+3.1+6.79+6.9
0.3+0.77+8.23+9.78.05+5.61-5.05
一、填一填。
6.5+4.84+3.5=6.5+____+4.84
(4.31+1.13)+8.87=____+(____+____)
43.61-4.2-5.8=____〇(____〇____)
二、下面各题怎样简便怎样计算。
8.28+4.5+3.59.57-3.6-2.4
5.07-3.7+4.937.3+0.42+0.58+18.7
9.5+1.8+2.27.47-2.63-1.37
51+9.4+9.3+575.52+3.87+3.13
5.51+8.24+0.492.37+5.8+7.63+4.2
3.6+3.34+6.66+6.48.58+3.47-5.58
一、填一填。
5.2+7.36+4.8=5.2+____+7.36
(1.46+3.55)+4.45=____+(____+____)
24.58-5.8-4.2=____〇(____〇____)
二、下面各题怎样简便怎样计算。
7.88+1.4+7.67.73-2.8-2.2
5.82-1.3+3.1819.9+0.66+0.34+9.1
3.5+8.7+3.38.87-0.23-4.77
76+5.8+1.4+632.91+1.24+6.76
4.68+5.26+1.320.89+3.4+7.11+6.6
5.5+2.14+4.86+2.58.05+8.68-6.05
一、填一填。
2.7+8.11+7.3=2.7+____+8.11
(4.89+1.03)+6.97=____+(____+____)
39.21-3.5-6.5=____〇(____〇____)
二、下面各题怎样简便怎样计算。
7.06+1.1+8.98.54-2.7-2.3
4.62-3.9+5.3816.8+0.87+0.13+13.2
2.8+2.1+3.68.16-1.83-5.17
49+9.8+3.2+293.51+1.06+4.94
2.77+0.16+3.235.22+8.3+0.78+1.7
3.1+1.66+3.34+6.99.27+0.67-4.27
一、填一填。
1.1+9.69+8.9=1.1+____+9.69
(6.42+3.75)+2.25=____+(____+____)
42.71-6.7-3.3=____〇(____〇____)
二、下面各题怎样简便怎样计算。
2.83+5.2+0.87.69-3.9-2.1
4.76-1.9+4.244.3+0.66+0.34+21.7
7.3+6.3+9.38.36-0.57-6.43
55+7.7+4.6+766.86+5.69+2.31
0.18+1.78+8.822.88+6.6+7.12+3.4
1.2+1.85+3.15+8.89.69+1.57-4.69
一、填一填。
2.6+1.64+7.4=2.6+____+1.64
(1.31+1.49)+5.51=____+(____+____)
21.53-7.3-2.7=____〇(____〇____)
二、下面各题怎样简便怎样计算。
7.68+2.2+7.87.55-3.9-2.1
6.26-2.5+3.7418.3+0.94+0.06+3.7
8.6+6.4+1.28.14-0.39-3.61
92+4.1+8.9+260.89+3.98+2.02
3.51+6.44+6.493.13+1.6+6.87+8.4
1.6+1.83+5.17+8.46.29+1.25-5.29
一、填一填。
5.1+5.85+4.9=5.1+____+5.85
(1.95+4.11)+4.89=____+(____+____)
35.76-4.5-5.5=____〇(____〇____)
二、下面各题怎样简便怎样计算。
2.43+3.4+3.68.58-2.5-3.5
6.69-3.9+0.316.1+0.16+0.84+23.9
4.3+1.6+4.79.24-2.36-4.64
78+8.7+7.1+220.03+5.89+2.11
2.02+3.27+7.981.71+2.2+8.29+7.8
3.6+0.89+8.11+2.48.94+8.69-4.94
一、填一填。
5.3+8.28+4.7=5.3+____+8.28
(5.38+3.42)+5.58=____+(____+____)
46.26-2.9-7.1=____〇(____〇____)
二、下面各题怎样简便怎样计算。
4.05+4.1+3.98.65-1.8-2.2
5.16-1.6+3.842.9+0.13+0.87+24.1
3.6+1.1+7.59.79-0.37-6.63
97+8.2+1.3+993.34+1.62+6.38
4.83+1.77+4.170.44+2.5+9.56+7.5
0.8+3.66+4.34+6.28.47+7.82-3.47
一、填一填。
6.9+1.24+3.1=6.9+____+1.24
(9.09+4.74)+3.26=____+(____+____)
47.69-6.6-3.4=____〇(____〇____)
二、下面各题怎样简便怎样计算。
6.63+2.5+5.58.32-1.2-2.8
6.45-1.5+0.554.4+0.87+0.13+15.6