人教版四年级数学下册小数加减法简便计算练习题99.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99
一、填一填。
1.3+7.63+8.7=1.3+____+7.63
(8.92+4.07)+1.93=____+(____+____)
35.79-3.3-6.7=____〇(____〇____)
二、下面各题怎样简便怎样计算。
9.59+1.7+4.38.48-3.8-1.2
4.64-1.9+2.3610.3+0.87+0.13+12.7
8.9+4.8+8.67.83-0.01-4.99
77+7.7+8.9+613.05+0.09+9.91
2.68+9.91+6.324.52+9.9+1.48+0.1
4.5+2.31+3.69+4.57.84+1.15-6.84
一、填一填。
2.4+9.33+7.6=2.4+____+9.33
(2.63+4.93)+4.07=____+(____+____)
18.05-6.3-3.7=____〇(____〇____)
二、下面各题怎样简便怎样计算。
1.49+2.7+5.38.51-3.1-0.9
4.75-3.9+5.252.4+0.53+0.47+18.6
2.2+7.8+6.58.95-3.02-3.98
95+8.2+9.2+687.66+3.31+4.69
1.71+6.37+7.293.59+2.3+4.41+7.7
4.6+4.65+0.35+4.47.04+1.78-2.04
一、填一填。
4.8+6.29+5.2=4.8+____+6.29
(3.88+1.14)+8.86=____+(____+____)
13.27-5.4-4.6=____〇(____〇____)
二、下面各题怎样简便怎样计算。
9.47+1.3+4.77.19-1.2-2.8
5.54-2.5+1.467.8+0.35+0.65+19.2
1.6+8.4+8.68.32-3.12-1.88
99+7.7+8.4+612.83+4.22+1.78
2.71+1.93+7.295.98+9.8+0.02+0.2
3.5+4.63+0.37+6.57.82+5.31-3.82
一、填一填。
6.1+4.75+3.9=6.1+____+4.75
(8.09+4.99)+5.01=____+(____+____)
29.45-8.9-1.1=____〇(____〇____)
二、下面各题怎样简便怎样计算。
3.95+4.5+3.59.16-3.6-0.4
6.19-1.9+0.8116.9+0.82+0.18+7.1
5.9+3.2+8.68.94-1.37-2.63
53+6.9+2.6+995.37+0.28+5.72
3.48+5.89+4.524.01+0.1+5.99+9.9
2.9+2.75+2.25+7.17.51+0.85-4.51
一、填一填。
8.9+6.39+1.1=8.9+____+6.39
(5.52+2.59)+7.41=____+(____+____)
11.92-1.7-8.3=____〇(____〇____)
二、下面各题怎样简便怎样计算。
5.43+5.5+4.57.84-3.2-0.8
5.26-3.9+4.743.6+0.36+0.64+24.4
5.5+9.4+6.59.72-3.65-0.35
14+2.6+9.7+926.57+0.48+9.52
0.04+8.17+6.960.19+1.6+9.81+8.4
3.8+1.16+5.84+5.26.28+9.84-2.28
一、填一填。
7.9+6.58+2.1=7.9+____+6.58
(4.44+2.42)+4.58=____+(____+____)
46.77-4.9-5.1=____〇(____〇____)
二、下面各题怎样简便怎样计算。
7.53+2.1+5.99.21-1.4-4.6
5.15-3.2+3.856.6+0.64+0.36+23.4
1.6+1.5+6.67.45-0.69-4.31
92+7.1+9.9+154.01+2.07+7.93
2.35+8.09+6.650.38+8.3+7.62+1.7
2.8+4.49+1.51+3.27.14+5.45-2.14
一、填一填。
9.4+5.95+0.6=9.4+____+5.95
(5.79+3.86)+6.14=____+(____+____)
43.92-7.5-2.5=____〇(____〇____)
二、下面各题怎样简便怎样计算。
9.35+5.8+2.27.59-3.5-2.5
6.28-3.4+0.7213.9+0.63+0.37+15.1
7.4+1.7+8.48.24-3.13-2.87
55+9.7+5.7+184.18+0.96+5.04
0.75+7.07+9.254.26+0.5+3.74+9.5
4.2+2.61+3.39+1.86.72+1.62-4.72
一、填一填。
5.8+5.92+4.2=5.8+____+5.92
(3.12+3.33)+5.67=____+(____+____)
14.45-7.5-2.5=____〇(____〇____)
二、下面各题怎样简便怎样计算。
7.88+1.5+7.56.39-2.7-1.3
5.31-2.7+3.6913.1+0.85+0.15+13.9
6.3+1.6+9.68.74-1.46-5.54
84+8.6+7.5+496.87+0.94+8.06
4.33+4.88+3.674.11+4.5+1.89+5.5
1.9+0.92+9.08+5.18.91+9.81-4.91
一、填一填。
5.4+6.12+4.6=5.4+____+6.12
(8.36+3.24)+5.76=____+(____+____)
46.29-1.2-8.8=____〇(____〇____)
二、下面各题怎样简便怎样计算。
5.58+5.2+4.87.93-3.7-1.3
6.87-3.7+2.1316.2+0.17+0.83+10.8
6.8+5.4+5.27.66-3.57-3.43
54+5.2+7.2+258.57+5.17+4.83
5.73+7.57+2.275.89+5.9+4.11+4.1
3.2+4.21+4.79+4.87.81+1.45-4.81
一、填一填。
9.6+9.97+0.4=9.6+____+9.97
(7.52+2.47)+3.53=____+(____+____)
12.86-5.9-4.1=____〇(____〇____)
二、下面各题怎样简便怎样计算。
9.12+3.9+4.18.92-2.8-1.2
4.03-1.6+5.970.3+0.09+0.91+20.7
1.3+7.5+6.57.16-3.64-0.36
16+2.1+2.3+636.72+3.02+5.98
2.02+8.83+5.982.17+2.1+5.83+7.9
5.2+3.95+5.05+0.88.72+1.71-4.72
一、填一填。
8.6+4.25+1.4=8.6+____+4.25
(4.87+3.63)+5.37=____+(____+____)
24.15-2.8-7.2=____〇(____〇____)
二、下面各题怎样简便怎样计算。
8.17+1.4+4.69.27-1.1-2.9
6.12-2.7+2.883.7+0.29+0.71+22.3
9.9+4.5+1.59.42-3.75-2.25
55+7.3+8.2+998.02+5.26+3.74
5.06+2.21+1.944.32+6.9+4.68+3.1
0.9+1.42+6.58+6.18.93+9.57-6.93
一、填一填。
6.4+7.44+3.6=6.4+____+7.44
(6.57+3.34)+5.66=____+(____+____)
28.33-8.1-1.9=____〇(____〇____)
二、下面各题怎样简便怎样计算。
6.26+3.7+2.39.28-3.9-0.1
6.32-1.9+0.683.4+0.12+0.88+17.6
7.9+1.8+8.77.45-3.36-1.64
72+8.9+5.2+943.05+3.93+5.07
5.11+6.63+0.890.95+0.7+7.05+9.3
5.3+2.94+5.06+3.77.94+9.04-6.94
一、填一填。
1.4+6.47+8.6=1.4+____+6.47
(7.55+2.22)+5.78=____+(____+____)
45.65-2.6-7.4=____〇(____〇____)
二、下面各题怎样简便怎样计算。
4.24+1.1+7.96.78-1.7-3.3
6.98-3.7+1.021.1+0.52+0.48+24.9
8.5+8.7+8.48.67-0.04-6.96
69+4.1+3.6+668.46+1.33+7.67
1.87+7.38+6.132.57+8.4+5.43+1.6
4.7+1.38+4.62+4.36.76+7.36-5.76
一、填一填。
6.1+6.79+3.9=6.1+____+6.79
(3.75+1.05)+8.95=____+(____+____)
21.82-6.3-3.7=____〇(____〇____)
二、下面各题怎样简便怎样计算。
5.46+2.1+5.97.08-3.1-0.9
6.03-2.2+1.9715.9+0.85+0.15+9.1
3.6+6.9+1.69.54-1.35-5.65
74+8.7+6.2+279.09+2.67+6.33
2.86+5.48+5.140.71+7.4+8.29+2.6
0.3+0.36+5.64+9.79.94+7.27-7.94
一、填一填。
1.4+9.63+8.6=1.4+____+9.63
(5.91+2.06)+6.94=____+(____+____)
13.47-4.2-5.8=____〇(____〇____)
二、下面各题怎样简便怎样计算。
5.23+4.3+1.79.72-3.9-1.1
6.47-3.6+0.5310.8+0.12+0.88+14.2
5.2+2.3+2.38.93-2.92-3.08
46+6.8+7.7+582.03+1.45+7.55
3.36+5.93+6.640.84+2.1+5.16+7.9
3.8+4.75+1.25+2.27.14+9.63-5.14
一、填一填。
1.3+2.83+8.7=1.3+____+2.83
(6.75+3.22)+2.78=____+(____+____)
13.23-2.3-7.7=____〇(____〇____)
二、下面各题怎样简便怎样计算。
9.38+2.8+6.26.33-3.3-1.7
4.77-2.1+3.2316.5+0.93+0.07+5.5
9.1+6.6+1.48.47-3.12-3.88
19+2.7+2.7+235.76+4.51+5.49
5.71+6.03+4.290.36+0.8+9.64+9.2
2.1+3.06+5.94+6.98.88+2.09-5.88
一、填一填。
7.4+9.29+2.6=7.4+____+9.29
(6.62+4.21)+2.79=____+(____+____)
10.51-4.4-5.6=____〇(____〇____)
二、下面各题怎样简便怎样计算。
4.91+4.5+3.58.07-3.4-1.6
5.96-1.4+3.0413.9+0.01+0.99+16.1
9.4+8.5+2.97.43-2.25-1.75
12+7.4+3.8+390.62+3.16+4.84
1.08+3.68+4.920.83+5.5+8.17+4.5
1.7+4.51+2.49+7.39.01+0.64-8.01
一、填一填。
1.1+6.73+8.9=1.1+____+6.73
(6.96+4.36)+3.64=____+(____+____)
35.01-3.8-6.2=____〇(____〇____)
二、下面各题怎样简便怎样计算。
2.86+5.3+0.78.87-2.2-2.8
6.39-3.9+2.6119.1+0.15+0.85+10.9