人教版四年级数学下册小数加减法简便计算练习题44.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44
一、填一填。
7.9+5.95+2.1=7.9+____+5.95
(5.33+1.44)+7.56=____+(____+____)
34.15-1.9-8.1=____〇(____〇____)
二、下面各题怎样简便怎样计算。
9.22+3.3+4.79.26-2.8-1.2
5.47-2.8+1.5314.9+0.65+0.35+5.1
6.9+7.7+9.79.88-3.87-0.13
82+8.4+8.6+242.79+4.91+4.09
1.57+1.05+4.433.42+3.3+6.58+6.7
4.8+1.52+7.48+1.26.05+9.87-4.05
一、填一填。
9.9+2.03+0.1=9.9+____+2.03
(9.82+2.03)+5.97=____+(____+____)
29.67-4.3-5.7=____〇(____〇____)
二、下面各题怎样简便怎样计算。
7.28+2.8+4.29.92-1.8-4.2
4.65-3.1+5.355.9+0.15+0.85+18.1
7.7+8.9+9.78.07-3.93-0.07
92+3.6+2.4+430.94+3.57+4.43
2.75+3.15+7.254.78+2.9+2.22+7.1
3.7+2.24+4.76+3.39.67+2.69-4.67
一、填一填。
9.6+1.68+0.4=9.6+____+1.68
(1.89+4.35)+5.65=____+(____+____)
22.25-1.9-8.1=____〇(____〇____)
二、下面各题怎样简便怎样计算。
4.89+5.9+1.19.56-2.9-1.1
4.09-2.6+2.9112.2+0.75+0.25+8.8
1.7+7.9+2.47.06-2.71-3.29
75+4.5+9.9+889.64+3.92+4.08
3.41+9.41+2.595.78+1.3+2.22+8.7
3.9+4.06+5.94+5.18.02+2.79-3.02
一、填一填。
1.9+6.59+8.1=1.9+____+6.59
(3.72+4.35)+4.65=____+(____+____)
15.63-8.6-1.4=____〇(____〇____)
二、下面各题怎样简便怎样计算。
6.06+2.3+6.78.54-2.9-1.1
6.71-3.4+2.297.8+0.53+0.47+16.2
8.4+7.3+9.17.78-3.08-2.92
36+2.9+4.7+939.08+5.99+3.01
1.29+3.78+6.710.48+5.4+9.52+4.6
2.2+3.22+2.78+4.87.71+2.74-2.71
一、填一填。
5.2+4.97+4.8=5.2+____+4.97
(9.71+1.21)+8.79=____+(____+____)
45.27-7.1-2.9=____〇(____〇____)
二、下面各题怎样简便怎样计算。
2.25+2.6+5.48.05-3.1-1.9
4.84-1.9+5.1616.1+0.64+0.36+13.9
8.1+1.4+4.77.46-1.31-3.69
21+4.9+6.3+657.11+0.68+5.32
5.66+9.65+3.342.48+3.1+6.52+6.9
4.2+2.69+3.31+3.86.04+2.03-2.04
一、填一填。
8.7+7.79+1.3=8.7+____+7.79
(1.42+4.18)+5.82=____+(____+____)
48.49-4.3-5.7=____〇(____〇____)
二、下面各题怎样简便怎样计算。
3.65+4.2+4.86.66-3.6-1.4
5.26-1.2+3.7412.3+0.62+0.38+8.7
2.7+1.8+9.47.24-3.26-2.74
73+9.8+3.1+652.62+0.07+5.93
4.52+4.56+3.480.55+2.8+7.45+7.2
4.5+0.11+8.89+5.58.46+6.86-5.46
一、填一填。
9.2+9.78+0.8=9.2+____+9.78
(6.71+4.42)+5.58=____+(____+____)
33.76-7.6-2.4=____〇(____〇____)
二、下面各题怎样简便怎样计算。
4.74+4.2+2.89.08-1.1-4.9
5.64-2.1+1.3612.4+0.98+0.02+16.6
4.7+4.5+7.18.09-3.16-0.84
79+9.2+2.5+313.07+2.08+6.92
1.57+2.23+7.435.14+6.1+2.86+3.9
5.4+4.07+5.93+1.69.79+4.32-6.79
一、填一填。
1.8+9.66+8.2=1.8+____+9.66
(5.13+2.84)+4.16=____+(____+____)
26.27-6.6-3.4=____〇(____〇____)
二、下面各题怎样简便怎样计算。
8.49+4.5+2.56.32-1.4-3.6
5.66-1.3+2.343.3+0.76+0.24+26.7
6.9+2.3+9.67.81-3.73-0.27
19+5.1+8.5+653.36+3.92+6.08
2.87+3.76+5.131.78+5.8+5.22+4.2
5.7+0.05+8.95+4.39.65+6.52-8.65
一、填一填。
9.3+3.94+0.7=9.3+____+3.94
(9.94+4.33)+1.67=____+(____+____)
11.23-5.8-4.2=____〇(____〇____)
二、下面各题怎样简便怎样计算。
1.49+3.7+2.37.46-3.8-2.2
6.07-2.3+0.9313.8+0.21+0.79+11.2
6.9+7.1+6.98.42-3.33-1.67
42+5.4+8.9+777.68+0.02+9.98
1.92+0.44+7.080.76+1.9+6.24+8.1
2.7+1.77+5.23+6.38.16+2.62-6.16
一、填一填。
1.8+8.38+8.2=1.8+____+8.38
(2.34+4.86)+1.14=____+(____+____)
30.29-3.9-6.1=____〇(____〇____)
二、下面各题怎样简便怎样计算。
7.98+2.8+3.27.96-3.4-2.6
5.07-2.9+1.9310.1+0.53+0.47+18.9
4.9+9.1+3.19.04-1.33-5.67
63+1.5+1.6+841.64+3.78+2.22
3.05+3.19+4.953.35+7.3+5.65+2.7
5.9+2.72+6.28+4.16.24+4.87-3.24
一、填一填。
7.9+2.55+2.1=7.9+____+2.55
(1.91+1.59)+8.41=____+(____+____)
13.66-6.6-3.4=____〇(____〇____)
二、下面各题怎样简便怎样计算。
8.38+1.9+5.19.06-3.6-0.4
4.96-1.1+3.041.9+0.39+0.61+27.1
1.5+2.1+7.18.48-0.57-3.43
82+3.6+7.7+798.99+5.15+0.85
4.31+7.46+4.690.01+3.5+9.99+6.5
5.2+3.06+4.94+3.86.43+2.67-4.43
一、填一填。
7.2+2.42+2.8=7.2+____+2.42
(5.85+2.77)+6.23=____+(____+____)
18.73-2.7-7.3=____〇(____〇____)
二、下面各题怎样简便怎样计算。
1.76+3.7+4.38.93-2.7-1.3
5.42-2.4+1.5814.5+0.11+0.89+5.5
3.4+7.5+5.48.63-1.72-5.28
93+6.8+1.5+850.76+0.94+8.06
2.12+8.81+7.881.35+6.8+6.65+3.2
4.2+2.13+5.87+1.88.02+6.22-6.02
一、填一填。
2.8+5.32+7.2=2.8+____+5.32
(3.23+1.73)+8.27=____+(____+____)
36.96-7.3-2.7=____〇(____〇____)
二、下面各题怎样简便怎样计算。
8.84+4.3+3.77.18-2.7-2.3
5.52-3.2+1.4819.2+0.47+0.53+3.8
4.4+5.4+2.37.21-3.13-0.87
33+1.7+7.2+948.71+1.74+8.26
1.28+9.49+5.725.06+7.1+3.94+2.9
1.2+4.78+1.22+7.86.02+2.97-2.02
一、填一填。
8.7+6.79+1.3=8.7+____+6.79
(6.45+4.24)+5.76=____+(____+____)
48.32-4.1-5.9=____〇(____〇____)
二、下面各题怎样简便怎样计算。
2.04+2.6+3.48.12-2.9-2.1
5.37-2.1+2.636.1+0.81+0.19+17.9
3.6+4.3+3.39.29-2.59-1.41
96+9.3+6.4+954.51+5.39+2.61
4.67+3.06+3.331.09+0.7+6.91+9.3
0.3+4.88+3.12+9.78.62+2.74-3.62
一、填一填。
3.9+6.72+6.1=3.9+____+6.72
(5.27+1.26)+6.74=____+(____+____)
48.01-6.4-3.6=____〇(____〇____)
二、下面各题怎样简便怎样计算。
9.37+5.7+0.37.74-3.4-2.6
5.59-1.5+3.415.9+0.07+0.93+15.1
7.1+6.1+4.37.56-3.26-3.74
49+1.5+1.6+432.17+4.43+2.57
0.96+3.44+9.043.83+9.8+4.17+0.2
5.6+4.34+2.66+4.48.28+3.01-7.28
一、填一填。
2.1+8.18+7.9=2.1+____+8.18
(5.06+2.65)+6.35=____+(____+____)
40.73-2.9-7.1=____〇(____〇____)
二、下面各题怎样简便怎样计算。
3.77+3.7+2.36.77-1.7-3.3
4.33-2.3+2.676.5+0.76+0.24+21.5
6.6+9.6+4.49.47-2.43-2.57
77+7.4+3.6+427.27+5.79+1.21
4.36+0.97+5.643.48+3.3+3.52+6.7
3.1+2.12+7.88+3.98.99+0.27-6.99
一、填一填。
5.2+4.96+4.8=5.2+____+4.96
(5.33+4.97)+5.03=____+(____+____)
27.87-4.3-5.7=____〇(____〇____)
二、下面各题怎样简便怎样计算。
7.21+2.3+5.76.75-3.4-2.6
6.86-2.3+0.149.6+0.71+0.29+11.4
5.8+9.6+8.99.12-3.42-3.58
25+7.1+7.8+547.19+1.25+8.75
4.38+0.26+1.623.96+4.8+5.04+5.2
0.4+2.48+2.52+7.67.04+4.28-5.04
一、填一填。
3.1+5.92+6.9=3.1+____+5.92
(3.04+4.48)+5.52=____+(____+____)
39.75-5.6-4.4=____〇(____〇____)
二、下面各题怎样简便怎样计算。
3.59+1.9+4.16.22-3.5-0.5
5.92-3.1+3.085.5+0.24+0.76+15.5