人教版四年级数学下册小数加减法混合运算专项练习题68.docx
- 文档编号:28261259
- 上传时间:2023-07-09
- 格式:DOCX
- 页数:13
- 大小:21.21KB
人教版四年级数学下册小数加减法混合运算专项练习题68.docx
《人教版四年级数学下册小数加减法混合运算专项练习题68.docx》由会员分享,可在线阅读,更多相关《人教版四年级数学下册小数加减法混合运算专项练习题68.docx(13页珍藏版)》请在冰豆网上搜索。
人教版四年级数学下册小数加减法混合运算专项练习题68
一、口算。
2.9-0.1=8.7+1.5=0.6-0.29=5.2+0.8=
2.6+0.7=6.6+3.8=0.73-0.17=5.7-0.2=
7.7-0.9=7.1+1.1=0.69-0.46=8.5+0.9=
5.9-0.2=6.9+2.4=0.83-0.03=2.4-0.8=
6.8+0.9=8.1-4.7=0.77-0.23=6+0.2=
7-0.9=7-2.6=0.74+0.23=1+0.6=
7.3-0.2=6+2.3=0.68-0.2=5.5-0.7=
4+0.8=7.8-0.8=0.6-0.12=7.5-0.1=
二、混合运算。
0.79-0.31+6.47.8-0.81-4.1943.6-25.3+18
75.94+47.45+33.3277.85+42.76+84.796.04-1.64+3.02
30-(5.13+0.98)85.1-(27.9+9.3)3.93+2.38+1.22
一、口算。
5.8+0.6=8.2-2.9=0.63-0.25=1.8-0.3=
2.9-0.7=6.7+2.5=0.74+0.05=5.4-0.7=
5.8-0.9=8.9+2.3=0.89-0.17=8.9-0.9=
4.4+0.6=8.7+0.3=0.64-0.35=4.2+0.1=
1.8-0.6=8.3-2=0.6+0.42=8.1-0.3=
6.7-0.8=7.3+3.5=0.89+0.44=2.5+0.1=
1.1+0.3=7.3+3.2=0.63-0.33=5.1+0.2=
2.6-0.4=8.9-4.1=0.74+0.41=1-0.9=
二、混合运算。
0.8-0.3+6.96.5-0.54-3.4644.1+26.8+14.7
67.82-45.36+87.4485.84-18.41+93.397.45+5.84+1.27
50-(2.13-0.47)66.9+(24.3-3.8)7.7-3.22-4.09
一、口算。
6.7+0.7=7.2-1.5=0.77+0.21=3.3+0.5=
6.2+0.7=7.3-4.3=0.63-0.3=4.8+0.6=
9+0.1=7.7+0.3=0.66-0.39=4-0.3=
2.3-0.3=6.9+0.4=0.71+0.02=7.3+0.4=
1.7+0.1=7.5-2.5=0.68+0.37=1-0.1=
2.7-0.1=8.4-4.6=0.9+0.22=3.8-0.4=
4.8-0.9=6.3+3.2=0.73-0.29=2.6+0.9=
7.8-0.2=7.4-4.2=0.75+0.08=7.9-0.1=
二、混合运算。
0.75+0.35+6.37.9-0.71-3.2964.5+37.8-25.9
89.37+39.18+55.8985.16+19.25+69.928+3.07-2.26
40-(8.99-0.34)72-(18.3+4.8)9.65-3.34-1.7
一、口算。
6.2-0.8=7.6+3=0.78-0.35=1.4-0.9=
4.7+0.2=7.4+0.1=0.85+0.24=4.8+0.8=
2.5-0.1=7.8+2.5=0.81+0.11=2.7-0.5=
6+0.6=8-1.8=0.66-0.02=6.4-0.7=
6.3-0.4=7.3+1.4=0.67+0.47=1+0.9=
5-0.9=8.7-4.4=0.75-0.29=3.8+0.6=
8.5+0.5=6.5-4=0.61+0.27=8.6+0.3=
2.9+0.8=6.7-2.4=0.66-0.15=4.8+0.1=
二、混合运算。
0.86+0.08+9.99.1-0.88-3.1249.6-21.9+21.3
72.32+17.5+80.289.29+47.96+29.255.1+2.46-1.88
70-(2.07-0.76)75+(18.8-3.4)5.62+2.1-3.41
一、口算。
2.3+0.3=7.5-2=0.87-0.06=2+0.9=
5.8-0.2=6.4-0.2=0.84+0.15=3.2-0.5=
2.8+0.7=8.3-4.8=0.76+0.29=5.4-0.4=
1.8+0.5=8.7-1.1=0.63-0.03=6-0.7=
5-0.6=6+3.8=0.61-0.27=1.5-0.5=
8.5+0.7=8.6+0.6=0.67+0.01=4.7-0.6=
4.6-0.4=7.8+0.2=0.73-0.09=6.3-0.2=
7.4+0.5=8.3+0.8=0.7-0.39=1.3-0.9=
二、混合运算。
0.89-0.35+3.38.4-0.51-2.4947.4+26.7-13
61.08-19.07+76.6562.65+17.98+64.446.08+1.55+2.81
20-(8.7-0.98)96.4-(22.1+1.4)8.14+3.74+3.42
一、口算。
1.4-0.9=8.4-3.1=0.65+0.48=5.9-0.5=
6.1-0.7=7.5+4.8=0.89-0.41=7.5-0.5=
5.6-0.5=7.4+1.7=0.88+0.25=7.3-0.4=
5.8+0.8=7.6+0.8=0.74+0.43=6.3+0.2=
6.9+0.7=8.4-4=0.86+0.48=4.7-0.8=
4+0.2=8.1+2.4=0.68+0.25=4.9+0.1=
6.4+0.3=7.1-0.2=0.62-0.12=4.4-0.3=
2.8-0.1=8.9-2.2=0.63+0.35=2.3+0.3=
二、混合运算。
0.64-0.37+9.49.4-0.3-4.787.7-68.9-12.8
70.2+32.53+26.3888.16+35.88+61.635.16-1.79-3.03
20-(5.39-0.3)65.9-(11.5+9.8)7.58+1.7+5.06
一、口算。
8.2+0.6=6.4+0.7=0.62-0.39=4.1-0.5=
4.5-0.3=7+3.4=0.63-0.42=7.1+0.8=
4.3+0.1=8.5+3.1=0.7+0.36=8.3-0.5=
6.7-0.6=9-0.5=0.8-0.03=3.9+0.3=
4.9-0.6=7.7-1.1=0.63-0.25=2+0.4=
7.6+0.3=6.4-3.4=0.88-0.28=4.2-0.1=
9+0.9=7.5-4.9=0.88+0.09=5+0.4=
2.6+0.6=6.7-4.6=0.77-0.1=2.6+0.6=
二、混合运算。
0.61+0.18+0.66.9-0.53-0.4792-70.2+11.5
78.27+26.08+79.2290+27.88+17.466.09-1.92+3.77
60-(8.64-0.12)81.1-(13.1-4.4)3.99+1.5-1.76
一、口算。
7+0.9=6.3+4.3=0.64+0.29=5.5-0.9=
2.8-0.6=7.1-4.6=0.65+0.24=3.5+0.7=
9+0.1=6.4+2.5=0.88-0.23=6.7+0.7=
2.7+0.2=6.2+4.6=0.74-0.04=2.2-0.2=
3.9+0.6=8.3+1.1=0.86+0.49=4.6-0.9=
4.2-0.4=6.2-0.6=0.86-0.26=3.9+0.4=
5.9-0.7=7.1-0.2=0.78+0.02=5+0.7=
3.7-0.2=6.1+3.6=0.74-0.1=3.6-0.4=
二、混合运算。
0.8-0.21+6.65.5-0.65-0.3587.1+57.6-16.2
69.1-20.45+84.2387.58+33.65+47.798.91-4.09-4.15
60-(5.7+0.45)75.9+(10.8+9.9)7.67-4.77-2.01
一、口算。
7.2+0.8=7.6-2.5=0.79-0.39=8.5+0.3=
5.6-0.4=7.5+4.3=0.7-0.27=2.9+0.8=
3.9+0.1=6.7+1.6=0.7-0.45=8.3-0.1=
4.1-0.5=6.9-4.4=0.67-0.26=4.8+0.4=
6.9-0.2=8.4-4.1=0.86+0.25=6.4-0.9=
8.3-0.2=8.1-4.9=0.87+0.4=5.7+0.9=
7.6+0.2=7.8+0.2=0.71-0.06=7+0.7=
3.7+0.9=7.6-0.8=0.6-0.1=8.9-0.5=
二、混合运算。
0.62+0.24+5.35.8-0.83-2.1759.4-10.2+29.3
70.48-38.14+71.6176.08+21.38+42.258.44+2.7+5.48
40-(4.35-0.45)65.6-(14.4-6.6)5.66-2.91-2.14
一、口算。
3.6+0.5=8.3+0.8=0.62-0.36=5.9-0.6=
1.8-0.5=7.3+3=0.87-0.26=8.9-0.7=
7.9+0.7=8.5-2.2=0.87-0.48=8.4-0.1=
8.8+0.3=7.2+4.4=0.72+0.12=4.8-0.7=
2.8+0.6=8.5+0.3=0.83+0.06=8.8+0.6=
7.6+0.1=6.1+3.1=0.83-0.43=6-0.8=
9+0.5=7+0.9=0.65-0.01=2.4-0.9=
2.5+0.2=8.2+0.9=0.71+0.13=7.4+0.3=
二、混合运算。
0.71+0.49+6.16.1-0.1-3.961.2+39+17.5
88.6+36.01+54.869.66+25.38+76.089.23+7.23+1.42
30-(2.85+0.74)69.8+(24.2-7.9)5.72-1.19+2.77
一、口算。
5.7+0.2=7.6-3.8=0.88+0.08=1.9-0.2=
3.2-0.1=7.6-2.2=0.85-0.2=2.6+0.3=
4.3-0.1=8.5-0.2=0.6-0.07=7.5-0.1=
6.9-0.8=6.4+1.3=0.69+0.21=2.5+0.2=
1.3+0.7=8.1+2.7=0.61+0.05=1.8+0.3=
4.9-0.6=8.4+3.6=0.65-0.18=1.8+0.2=
8.6+0.6=7.5+4.2=0.81-0.13=1.7+0.1=
8.6-0.8=6.8+4.7=0.83-0.05=4+0.1=
二、混合运算。
0.62-0.36+69-0.64-3.3681.7-36.8-43.3
83.44+37.12+99.4384.96+18.42+12.445.18+3.56+1.11
20-(6.59+0.58)82.4-(11.4+5.6)7.62+3.91+1.15
一、口算。
5.2+0.1=8.7+2.3=0.89+0.24=8.3+0.4=
2.3-0.6=6.3+3.1=0.7+0.29=8.3-0.4=
3.8+0.4=6.7-2=0.72+0.11=5.8-0.1=
7.5-0.4=8.3-4.3=0.62+0.3=2.1-0.5=
4.5-0.5=8+1.1=0.62+0.07=8.9+0.1=
6.9+0.2=8.9+1.3=0.85-0.12=3.2-0.2=
1.3+0.8=7.9-0.8=0.85+0.29=2.7+0.4=
2.5-0.5=8.7-3.4=0.9+0.37=5.3+0.7=
二、混合运算。
0.62-0.15+9.66.4-0.29-3.7144.1+23.5+14.7
67.2+20.16+84.6561.52+30.31+97.627.29+4.48-1.62
40-(5.08+0.16)83.7-(18.6+1.3)5.53+3.09-2.22
一、口算。
3.5+0.9=7.6-3=0.77-0.37=4.6-0.3=
3.6-0.9=8.9+1.4=0.65+0.29=6.2-0.8=
8.7-0.6=8.6+4.2=0.6-0.48=8.2-0.2=
1.8-0.7=8-2.6=0.66+0.23=4.4+0.6=
2.8-0.6=8.4+4.8=0.6-0.09=7.4-0.5=
1.7+0.1=7.3-1.2=0.74+0.26=4.4-0.4=
6.7+0.3=7.2-0.5=0.6+0.39=4.6+0.1=
3.8+0.5=6.7+3.5=0.67+0.01=5+0.6=
二、混合运算。
0.62-0.08+5.89.8-0.31-4.6956.9-15.3-33.1
62.35-39.98+21.1565.35+23.72+92.224.58-1.16+1.46
20-(6.46-0.97)85.4+(18.6-2.5)3.94-1.83-1.26
一、口算。
8-0.2=8.5-0.4=0.87-0.49=6.8+0.1=
8.9+0.6=8.3+2.7=0.89-0.21=8.7+0.7=
5.6+0.6=6.7-3.7=0.78+0.16=8.6-0.7=
1.5+0.1=7-0.7=0.75-0.47=2.1-0.5=
2.7+0.1=6.7+4.7=0.81+0.48=3.8+0.5=
3.2-0.1=6.1+3.8=0.7+0.09=6.8+0.8=
8.8-0.3=6.2-3.3=0.73-0.31=3.8-0.8=
7.5-0.8=8.9+3.9=0.68+0.02=8.7+0.3=
二、混合运算。
0.69+0.06+2.55.7-0.9-4.169.4+32.3-28.7
84.97+37.44+36.9187.28-25.97+98.777.78-5.38-1.21
20-(6.16-0.96)87.2-(18.7+8.1)9.45-7.13+2.25
一、口算。
5.7-0.2=7.5+4.9=0.6+0.35=2.3+0.3=
4.3+0.4=6.1+4.3=0.63-0.06=4.8-0.2=
3.5+0.6=8.9+1.8=0.83+0.09=6.8+0.4=
1.2-0.6=6+0.7=0.79+0.17=7.5+0.5=
1.3-0.5=6.5-2.3=0.76+0.15=4.2+0.1=
2.3+0.7=8.2-2.7=0.82+0.43=5.4-0.4=
1.2-0.4=7.1+1=0.64+0.34=9-0.8=
2.4-0.2=8.1-2=0.85+0.08=5.8-0.9=
二、混合运算。
0.85-0.3+0.65.1-0.17-0.8375.3-41.8+13
77.77-25.22+27.1975.66+13.98+57.386.66-1.26+3.83
20-(4.43+0.27)73.1+(16.6+4.4)4.04-1.46+2.02
一、口算。
5.5-0.4=6.5+1.8=0.69-0.15=5.3+0.4=
5.2-0.8=9+4.6=0.86-0.2=7.3-0.6=
5.2+0.7=8.1-4.2=0.69+0.16=6.1+0.3=
5.5+0.6=7.5-4.1=0.76+0.23=6.1+0.8=
3.8+0.2=8-1.9=0.87-0.04=6.4-0.5=
1.3-0.5=7.5+2.5=0.74+0.33=4.7+0.4=
4.8-0.8=8.9-3.5=0.65-0.2=7.3-0.8=
2.6+0.2=7.9+1.4=0.69+0.17=6.4-0.4=
二、混合运算。
0.84-0.16+49.7-0.28-0.7248.5+30.3-12.3
75.52+44.13+30.8366.15+42+46.198.16-5.93+1.46
70-(5.54+0.16)82.4-(12.6-3)6.13-1.73+2.45
一、口算。
6.8-0.7=8.9+0.6=0.78-0.21=8.4-0.2=
7.1+0.8=6.6-4.5=0.61+0.31=5.4+0.3=
2.7+0.7=6.1+3.9=0.85+0.33=3.9-0.6=
3-0.8=8.2+4.4=0.7+0.2=8.9-0.3=
4.9-0.7=8-0.5=0.89+0.14=8.6+0.1=
7.9-0.5=7.9-3.4=0.84-0.33=8.2+0.4=
6.9+0.2=7.9+4.6=0.69-0.12=6.5+0.2=
5.4+0.3=6.3-3.1=0.85-0.03=1.3+0.7=
二、混合运算。
0.87+0.36+9.97.1-0.25-0.7564.6+22.9+15.4
84.24-24.15+11.4588.15+21.67+85.214.04-2.17+1.18
70-(9.28-0.22)64.6+(19-4.3)5.65+3.75+1.68
一、口算。
7+0.4=8.9-1.8=0.67+0.07=4.2+0.6=
1.2+0.7=8.2-3.6=0.65+0.17=4.1+0.1=
8.7-0.3=7.5-4=
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- 人教版 四年级 数学 下册 小数 加减法 混合 运算 专项 练习题 68