所属成套资源:2023-2024学年五年级数学上册【期中专题精品复习资料】
2023-2024学年五年级数学上册期中专项练习:小数乘除法脱式计算和简便计算
展开这是一份2023-2024学年五年级数学上册期中专项练习:小数乘除法脱式计算和简便计算,共28页。
班级: 姓名:
亲爱的同学,在做练习的时候一定要认真审题,完成题目后,记得养成认真检查的好习惯。祝你轻松完成本次练习!
【记录卡】 亲爱的同学,在完成本专项练习后,你收获了什么?掌握了哪些新本领呢?在这里记录一下你的收获吧!
年 月 日
1.计算下面各题,能简算的要简算。
2.计算下面各题,能简算的要简算。
3.计算下面各题,能简算的要简算。
10.8×3.6÷2.7 25.4-40.5÷7.5 (4.72+2.8)÷0.4
4.计算下面各题,能简算的要简算。
56×1.25 6.1×3.6+3.6×3.9 21.36÷0.8-12.9
(16.8+1.47)÷0.7 9.8×25
5.计算下面各题,能简算的要简算。
4×25÷25×4 10.8-5.4-4.6 9.9×101
6.脱式计算,能简算的要简算。
17.05-1.3-8.7+12.95 0.32×2.5×12.5 2.78×1.1-2.78
16.1÷0.23-23.55 5.04×3.7+3.7×3.96+3.7
23.6÷[(6.8-5.4)×2.75-0.9]
7.脱式计算。(能简算的要简算)
(1)(0.2+6.1+0.7)×0.5 (2)3.7×4.7十6.3×4.7
(3)0.125×500×0.2×8 (4)0.65×101
8.怎样简便就怎样计算。
(1)3.67×99+3.67 (2)21÷2.5÷0.4 (3)0.94×2.5-0.45
(4)(1.25+12.5+125)×8 (5)1.25×32×0.25 (6)4.5×10.1
9.用简便方法计算。
(1)2.5×1.25×0.32 (2)0.11×1.8+8.2×0.11 (3)709×10.8-80×7.09
10.脱式计算,能简算的就简算
28.4×99+28.4 0.94×2.5-0.35
9.98×15.2 2.4×12.5×1.3
11.用自己喜欢的方法计算。
(1)1.25×3.2×0.8 (2)8.57×103﹣8.57×3 (3)28.4×99+28.4
(4)1.25×8.8 (5)4.8×56.7+56.7×5.2
12.计算下面各题,能简算的要简算。
63.6÷0.25÷4 99×4.5 5.6+4.4×0.8
1.25×32×0.25 0.4×(3.2-0.8)÷0.15
13.计算下面各题,能简算的要简算。
18.6×8×3.4 7.9×10.1 6543÷25÷4
8.2+0.82×990 8.2-7.6×0.5 3.4×12.36-2.36×3.4
14.脱式计算。
50×0.2×0.837 5.04×(4.32÷1.2 ) 7.8+1.5÷0.24
15.用递等式计算。
4.6×1.5+13.8÷3 [8.3-(3.6+2.9)]÷0.72
16.脱式计算下面各题,能简算的要简算。
(1)2.8×3.6+1.4×2.8 (2)4.05÷0.5-1.14 (3)3.35÷0.8÷1.25
(4)14.64+3.7×2.8 (5)8.7×2.5×4 (6) 6.3×10.1
17.计算下列各题,能简算的要简算。
20.9+10.37÷(5.2-3.5) 102×5.5
7.8×4.7+1.2×4.7 12.5×32×2.5
18.脱式计算。
37.5-7.5÷1.5 60×0.65+1.8÷0.5 3.7÷1.25÷0.8
19.计算下面各题,能简算的要简算。
2.56×1.5÷0.2 2.5×1.72×0.4
12.5-18.46÷2.6 101×0.65
20.运用简便方法进行计算。
(1)39.8×0.25×4 (2)7.6×15.8+2.4×15.8 (3)0.78×101
21.能简算的要简算。
(1)3.2×0.82+3.2×1.18 (2)4.05÷0.5-1.1 (3)1.58×99+1.58
22.脱式计算,能简便计算的要简便计算。
8.8×1.25 19.44÷2.7÷4.8 5.84÷0.25÷4
0.75×18+0.15 50.25×99.9 21÷3.5+21÷1.5
2023-2024学年五年级数学上册
期中专项练习:小数乘除法脱式计算和简便计算
(解析版)
1.计算,能简算的要简算。
【答案】
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
2.能简算的要简算。
【答案】
=
=
=
=
=
=
=
=
=
=
=
=4+0.7
=4.7
=
=
=
=
3.脱式计算。
10.8×3.6÷2.7 25.4-40.5÷7.5 (4.72+2.8)÷0.4
【答案】
10.8×3.6÷2.7
=38.88÷2.7
=14.4
25.4-40.5÷7.5
=25.4-5.4
=20
(4.72+2.8)÷0.4
=7.52÷0.4
=18.8
4.计算下面各题,能简算的要简算。
56×1.25 6.1×3.6+3.6×3.9 21.36÷0.8-12.9
(16.8+1.47)÷0.7 9.8×25
【答案】
56×1.25
=7×(8×1.25)
=7×10
=70
6.1×3.6+3.6×3.9
=(6.1+3.9)×3.6
=10×3.6
=36
21.36÷0.8-12.9
=26.7-12.9
=13.8
(16.8+1.47)÷0.7
=18.27÷0.7
=26.1
9.8×25
=10×25-0.2×25
=250-5
=245
5.简便计算。
4×25÷25×4 10.8-5.4-4.6 9.9×101
【答案】
4×25÷25×4
=25÷25×4×4
=4×4
=16
10.8-5.4-4.6
=10.8-(5.4+4.6)
=10.8-10
=0.8
9.9×101
=9.9×(100+1)
=9.9×100+9.9×1
=990+9.9
=999.9
6.脱式计算,能简算的要简算。
17.05-1.3-8.7+12.95 0.32×2.5×12.5 2.78×1.1-2.78
16.1÷0.23-23.55 5.04×3.7+3.7×3.96+3.7 23.6÷[(6.8-5.4)×2.75-0.9]
【答案】
17.05-1.3-8.7+12.95
=17.05+12.95-(1.3+8.7)
=30-10
=20
0.32×2.5×12.5
=4×0.08×2.5×12.5
=4×2.5×(0.08×12.5)
=10×1
=10
2.78×1.1-2.78
=2.78×1.1-2.78×1
=2.78×(1.1-1)
=2.78×0.1
=0.278
16.1÷0.23-23.55
=70-23.55
=46.45
5.04×3.7+3.7×3.96+3.7
=5.04×3.7+3.7×3.96+3.7×1
=3.7×(5.04+3.96+1)
=3.7×10
=37
23.6÷[(6.8-5.4)×2.75-0.9]
=23.6÷[1.4×2.75-0.9]
=23.6÷[3.85-0.9]
=23.6÷2.95
=8
7.脱式计算。(能简算的要简算)
(1)(0.2+6.1+0.7)×0.5 (2)3.7×4.7十6.3×4.7
(3)0.125×500×0.2×8 (4)0.65×101
【答案】
(1)(0.2+6.1+0.7)×0.5
=7×0.5
=3.5
(2)3.7×4.7十6.3×4.7
=4.7×(3.7+6.3)
=4.7×10
=47
(3)0.125×500×0.2×8
=(0.125×8)×(500×0.2)
=1×100
=100
(4)0.65×101
=0.65×(100+1)
=0.65×100+0.65
=65+0.65
=65.65
8.怎样简便就怎样计算。
(1)3.67×99+3.67 (2)21÷2.5÷0.4 (3)0.94×2.5-0.45
(4)(1.25+12.5+125)×8 (5)1.25×32×0.25 (6)4.5×10.1
【答案】
(1)3.67×99+3.67
=3.67×(99+1)
=3.67×100
=367
(2)21÷2.5÷0.4
=21÷(2.5×0.4)
=21÷1
=21
(3)0.94×2.5-0.45
=2.35-0.45
=1.9
(4)(1.25+12.5+125)×8
=1.25×8+12.5×8+125×8
=10+100+1000
=1110
(5)1.25×32×0.25
=1.25×(8×4)×0.25
=(1.25×8)×(4×0.25)
=10×1
=10
(6)4.5×10.1
=4.5×(10+0.1)
=4.5×10+4.5×0.1
=45+0.45
=45.45
9.用简便方法计算。
(1)2.5×1.25×0.32
(2)0.11×1.8+8.2×0.11
(3)709×10.8-80×7.09
【答案】
(1)2.5×1.25×0.32
=(2.5×0.4)×(1.25×0.8)
=1×1
=1
(2)0.11×1.8+8.2×0.11
=0.11×(1.8+8.2)
=0.11×10
=1.1
(3)709×10.8-80×7.09
=7.09×1080-80×7.09
=7.09×(1080-80)
=7.09×1000
=7090
10.脱式计算,能简算的就简算
28.4×99+28.4 0.94×2.5-0.35
9.98×15.2 2.4×12.5×1.3
【答案】
28.4×99+28.4
=28.4×(99+1)
=28.4×100
=2840
0.94×2.5-0.35
=2.35-0.35
=2
9.98×15.2
=(10-0.02)×15.2
=10×15.2-0.02×15.2
=152-0.304
=151.696
2.4×12.5×1.3
=(0.3×1.3)×(12.5×8)
=0.39×100
=39
11.用自己喜欢的方法计算。
(1)1.25×3.2×0.8 (2)8.57×103﹣8.57×3 (3)28.4×99+28.4
(4)1.25×8.8 (5)4.8×56.7+56.7×5.2
【答案】
(1)1.25×3.2×0.8
=1.25×0.8×3.2
=1×3.2
=3.2
(2)8.57×103﹣8.57×3
=8.57×(103﹣3)
=8.57×100
=857
(3)28.4×99+28.4
=28.4×(99+1)
=28.4×100
=2840
(4)1.25×8.8
=1.25×(8×1.1)
=1.25×8×1.1
=10×1.1
=11
(5)4.8×56.7+5.67×5.2
=56.7×(4.8+5.2)
=56.7×10
=567
12.计算下面各题,能简算的要简算。
63.6÷0.25÷4 99×4.5 5.6+4.4×0.8
1.25×32×0.25 0.4×(3.2-0.8)÷0.15
【答案】
63.6÷0.25÷4
=63.6÷(0.25×4)
=63.6÷1
=63.6
99×4.5
=(100-1)×4.5
=100×4.5-1×4.5
=450-4.5
=445.5
5.6+4.4×0.8
=5.6+3.52
=9.12
1.25×32×0.25
=1.25×(4×8)×0.25
=(1.25×8)×(0.25×4)
=10×1
=10
0.4×(3.2-0.8)÷0.15
=0.4×2.4÷0.15
=0.96÷0.15
=6.4
13.计算下面各题,能简算的要简算。
18.6×8×3.4 7.9×10.1 6543÷25÷4
8.2+0.82×990 8.2-7.6×0.5 3.4×12.36-2.36×3.4
【答案】
18.6×8×3.4
=148.8×3.4
=505.92
7.9×10.1
=7.9×(10+0.1)
=7.9×10+7.9×0.1
=79+0.79
=79.79
6543÷25÷4
=6543÷(25×4)
=6543÷100
=65.43
8.2+0.82×990
=8.2×1+8.2×99
=8.2×(1+99)
=8.2×100
=820
8.2-7.6×0.5
=8.2-3.8
=4.4
3.4×12.36-2.36×3.4
=3.4×(12.36-2.36)
=3.4×10
=34
14.脱式计算。
50×0.2×0.837 5.04×(4.32÷1.2 ) 7.8+1.5÷0.24
【答案】
50×0.2×0.837
=10×0.837
=8.37
5.04×(4.32÷1.2 )
=5.04×3.6
=18.144
7.8+1.5÷0.24
=7.8+6.25
=14.05
15.用递等式计算。
4.6×1.5+13.8÷3 [8.3-(3.6+2.9)]÷0.72
【答案】
(1)4.6×1.5+13.8÷3
=6.9+4.6
=11.5
(2)[8.3-(3.6+2.9)]÷0.72
=[8.3-6.5]÷0.72
=1.8÷0.72
=2.5
16.脱式计算下面各题,能简算的要简算。
(1)2.8×3.6+1.4×2.8 (2)4.05÷0.5-1.14 (3)3.35÷0.8÷1.25
(4)14.64+3.7×2.8 (5)8.7×2.5×4 (6) 6.3×10.1
【答案】
(1)2.8×3.6+1.4×2.8
=2.8×(3.6+1.4)
=2.8×5
=14
(2)4.05÷0.5-1.14
=8.1-1.14
=6.96
(3)3.35÷0.8÷1.25
=3.35÷(0.8×1.25)
=3.35÷1
=3.35
(4)14.64+3.7×2.8
=14.64+10.36
=25
(5)8.7×2.5×4
=8.7×(2.5×4)
=8.7×10
=87
(6) 6.3×10.1
=6.3×(10+0.1)
=6.3×10+6.3×0.1
=63+0.63
=63.63
17.计算下列各题,能简算的要简算。
20.9+10.37÷(5.2-3.5) 102×5.5
7.8×4.7+1.2×4.7 12.5×32×2.5
【答案】
(1)20.9+10.37÷(5.2-3.5)
=20.9+10.37÷1.7
=20.9+6.1
=27
(2)102×5.5
=(100+2)×5.5
=100×5.5+2×5.5
=550+11
=561
(3)7.8×4.7+1.2×4.7
=4.7×(7.8+1.2)
=4.7×9
=42.3
(4)12.5×32×2.5
=12.5×8×4×2.5
=(12.5×8)×(4×2.5)
=100×10
=1000
18.脱式计算。
37.5-7.5÷1.5 60×0.65+1.8÷0.5 3.7÷1.25÷0.8
【答案】
37.5-7.5÷1.5
=37.5-5
=32.5
60×0.65+1.8÷0.5
=39+3.6
=42.6
3.7÷1.25÷0.8
=3.7÷(1.25×0.8)
=3.7÷1
=3.7
19.计算下面各题,能简算的要简算。
2.56×1.5÷0.2 2.5×1.72×0.4
12.5-18.46÷2.6 101×0.65
【答案】
2.56×1.5÷0.2
=3.84÷0.2
=19.2
2.5×1.72×0.4
=2.5×0.4×1.72
=1×1.72
=1.72
12.5-18.46÷2.6
=12.5-7.1
=5.4
101×0.65
=(100+1)×0.65
=100×0.65+1×0.65
=65+0.65
=65.65
20.运用简便方法进行计算。
(1)39.8×0.25×4 (2)7.6×15.8+2.4×15.8 (3)0.78×101
【答案】
(1)39.8×0.25×4
=39.8×(0.25×4)
=39.8×1
=39.8
(2)7.6×15.8+2.4×15.8
=15.8×(7.6+2.4)
=15.8×10
=158
(3)0.78×101
=0.78×(100+1)
=0.78×100+0.78
=78+0.78
=78.78
21.能简算的要简算。
(1)3.2×0.82+3.2×1.18 (2)4.05÷0.5-1.1 (3)1.58×99+1.58
【答案】
(1)3.2×0.82+3.2×1.18
=3.2×(0.82+1.18)
=3.2×2
=6.4
(2)4.05÷0.5-1.1
=8.1-1.1
=7
(3)1.58×99+1.58
=1.58×(99+1)
=1.58×100
=158
22.脱式计算,能简便计算的要简便计算。
8.8×1.25 19.44÷2.7÷4.8 5.84÷0.25÷4
0.75×18+0.15 50.25×99.9 21÷3.5+21÷1.5
【答案】
(1)8.8×1.25
=(1.1×8)×1.25
=1.1×(8×1.25)
=1.1×10
=11
(2)19.44÷2.7÷4.8
=7.2÷4.8
=1.5
(3)5.84÷0.25÷4
=5.84÷(0.25×4)
=5.84÷1
=5.84
(4)0.75×18+0.15
=13.5+0.15
=13.65
(5)50.25×99.9
=50.25×(100﹣0.1)
=50.25×100﹣50.25×0.1
=5025﹣5.025
=5019.975
(6)21÷3.5+21÷1.5
=6+14
=20
相关试卷
这是一份四年级上册数学计算脱式计算 简便计算练习,共10页。
这是一份期末典例专练05:小数乘除法脱式计算和简便计算“拓展版”-2023-2024学年五年级数学上册典型例题系列(解析版)人教版,文件包含期末典例专练05小数乘除法脱式计算和简便计算“拓展版”-2023-2024学年五年级数学上册典型例题系列原卷版人教版docx、期末典例专练05小数乘除法脱式计算和简便计算“拓展版”-2023-2024学年五年级数学上册典型例题系列解析版人教版docx等2份试卷配套教学资源,其中试卷共22页, 欢迎下载使用。
这是一份期末典例专练04:小数乘除法脱式计算和简便计算“进阶版”-2023-2024学年五年级数学上册典型例题系列(解析版)人教版,文件包含期末典例专练04小数乘除法脱式计算和简便计算“进阶版”-2023-2024学年五年级数学上册典型例题系列原卷版人教版docx、期末典例专练04小数乘除法脱式计算和简便计算“进阶版”-2023-2024学年五年级数学上册典型例题系列解析版人教版docx等2份试卷配套教学资源,其中试卷共29页, 欢迎下载使用。