文档文本内容
五年级上册数学期末考点简便计算专项练习
一、归类练习：
3.29+0.73+2.27
3.29-0.73-2.27
7.5+2.5-7.5+2.5
7.325-3.29-3.325
7.325-(5.325+1.7)
7.325-(5.325-1.7)
3.29+0.73-2.29+2.27
3.29×0.25×4
0.125×8.8
0.25×0.28
0.125×3.2×2.5
35×10.2
0.25×4÷0.25×4
3.5×9.9
3.5×99+3.5
3.5×101-3.5
3.5×9.9+3.5×0.1
3.5×2.7+35×0.73
3.5×2.7-3.5×0.7
★(32+5.6)÷0.8
★3.5÷0.6-0.5÷0.6
4.9÷1.4
7÷0.25÷4
7.35÷(7.35×0.25)
二、混合练习：
3.07-0.38-1.62
1.29+3.7+2.71+6.3
8-2.45-1.55
3.25+1.79-0.59+1.75
23.4-0.8-13.4-7.2
0.32×403
3.2+0.36+4.8+1.64
1.23+3.4-0.23+6.6
0.25×36
12.7-(3.7+0.84)
36.54-1.76-4.54
0.25×0.73×4
7.6×0.8+0.2×7.6
0.85×199
0.25×8.5×4
1.28×8.6+0.72×8.6
12.5×0.96×0.8
10.4-9.6×0.35
0.8× (4.3×1.25)
3.12+3.12×99
28.6×101-28.6
(4.23+6.17) ×0.8
0.86×15.7-0.86×14.7
2.4×102
14-7.32-2.68
2.64+8.67+7.36+11.33
2.31×1.2×0.5
(2.5-0.25) ×0.4
9.16×1.5-0.5×9.16
3.6-3.6×0.5
4.5÷1.8
930÷0.6÷5
63.4÷2.5÷0.4
4.25÷2.5×9.9+0.1
15÷(0.15×0.4)
2.7÷45
五年级上册数学期末考点简便计算专项练习
3.29-0.73-2.27
7.5+2.5-7.5+2.5
=3.29-(0.73+2.27)
=(7.5-7.5)+(2.5+2.5)
=3.29-3
=0+5
=0.29
=5
(减法的性质
一、归类练习：
3.29+0.73+2.27
=3.29+(0.73+2.27)
=3.29+3
=6.29
(加法结合律)
)
(同级运算交换)
7.325-3.29-3.325
7.325-(5.325+1.7)
7.325-(5.325-1.7)
=7.325-3.325-3.29
=7.325-5.325-1.7
=7.325-5.325+1.7
=4-3.29
=2-1.7
=2+1.7
=0.71
=0.3
=3.7
(减法交换)
(减法的性质)
(前面减号，脱括号变符号)
3.29+0.73-2.29+2.27
3.29×0.25×4
0.125×8.8
=(3.29-2.29)+(0.73+2.27)
=3.29×(0.25×4)
=0.125×8×1.1
=1+3
=3.29×1
=1×1.1
=4
=3.29
=1.1
(同级运算交换)
(乘法结合律)
(先拆数，乘法结合律)
0.25×0.28
0.125×3.2×2.5
35×10.2
=0.25×4×0.07
=(0.125×8)×(0.4×2.5)
=35×(10+0.2)
=1×0.07
=1×1
=35×10+35×0.2
=0.07
=1
=350+7=357
(先拆数，乘法结合律)
(拆数，乘法结合律)
(拆数，乘法分配律)
0.25×4÷0.25×4
3.5×9.9
3.5×99+3.5
=(0.25÷0.25)×(4×4)
=3.5×(10-0.1)
=3.5×(99+1)
=1×16
=3.5×10-3.5×0.1
=3.5×100
=16
=35-0.35=34.65
=350
（同级运算交换)
(拆数，乘法分配律)
(乘法分配律)
3.5×101-3.5
3.5×9.9+3.5×0.1
3.5×2.7+35×0.73
=3.5×(101-1)
=3.5×(9.9+0.1)
=3.5×2.7+3.5×7.3
=3.5×100
=3.5×10
=3.5×(2.7+7.3)
=350
=35
=3.5×10=35
(乘法分配律)
(乘法分配律)
(先利用积不变的规律转化，
然后再用乘法分配律)
3.5×2.7-3.5×0.7
★(32+5.6)÷0.8
★3.5÷0.6-0.5÷0.6
=3.5×(2.7-0.7)
=32÷0.8+5.6÷0.8
=(3.5-0.5)÷0.6
=3.5×2
=40+7
=3÷0.6
=7
=47
=5
(乘法分配律)
(后2题类似分配律，但只适用于(a+b)÷c和
(a-b)÷c,而a÷(b+c)和a÷(b-c)不能用。)
4.9÷1.4
7÷0.25÷4
7.35÷(7.35×0.25)
=4.9÷(7×0.2)
=7÷ (0.25×4)
=1÷0.25
=4.9÷7÷0.2
=7÷1
=7.35÷7.35÷0.25
=0.7÷0.2
=7
=4
=3.5
(除法的性质)
(除法的性质)
(拆数，除法的性质)
二、混合练习：
3.07-0.38-1.62
1.29+3.7+2.71+6.3
8-2.45-1.55
=3.07-(0.38+1.62)
=(1.29+2.71)+(3.7+6.3)
=8-(2.45+1.55)
=3.07-2
=4+10
=8-4
=1.07
=14
=4
(减法的性质)
(加法交换律和加法结合律)
(减法的性质)
3.25+1.79-0.59+1.75
23.4-0.8-13.4-7.2
0.32×403
=(3.25+1.75)+(1.79-0.59)
=(23.4-13.4)-0.8-7.2
=0.32×(400+3)
=5+1.2
=10-(0.8+7.2)
=0.32×400+0.32×3
=6.2
=10-8=2
=128+0.96
(同级运算交换)
(减法交换和减法的性质)
=128.96
(拆数，乘法分配律)
3.2+0.36+4.8+1.64
1.23+3.4-0.23+6.6
0.25×36
=(3.2+4.8)+(0.36+1.64)
=(1.23-0.23)+(3.4+6.6)
=0.25×4×9
=8+2
=1+10
=1×9
=10
=11
=9
(加法交换律和加法结合律)
(同级运算交换)
(拆数，乘法结合律)
12.7-(3.7+0.84)
36.54-1.76-4.54
0.25×0.73×4
=12.7-3.7-0.84
=36.54-4.54 -1.76
=0.25×4×0.73
=9-0.84
=32-1.76
=1×0.73
=8.14
=30.24
=0.73
(减法的性质)
(减法交换)
(乘法交换律和乘法结合律)
7.6×0.8+0.2×7.6
0.85×199
0.25×8.5×4
=7.6×(0.8+0.2)
=0.85×(200-1)
=0.25×4×8.5
=7.6×1
=0.85×200-0.85×1
=1×8.5
=7.6
=170-0.85 =169.15
=8.5
(乘法分配律)
(拆数，乘法分配律)
(乘法交换律和乘法分配律)
1.28×8.6+0.72×8.6
12.5×0.96×0.8
10.4-9.6×0.35
=(1.28+0.72)×8.6
=12.5×0.8×0.96
=10.4-3.36
=2×8.6
=10×0.96
=7.04
=17.2
=9.6
(无简算)
(乘法分配律)
(乘法交换律和乘法结合律)
0.8× (4.3×1.25)
3.12+3.12×99
28.6×101-28.6
=0.8×1.25×4.3
=3.12× (1+99)
=28.6× (101-1)
=1×1.25
=3.12×100
=28.6×100
=1.25
=312
=2860
(乘法交换律和乘法结合律)
(乘法分配律)
(乘法分配律)
(4.23+6.17) ×0.8
0.86×15.7-0.86×14.7
2.4×102
=10.4×0.8
=0.86× (15.7-14.7)
=2.4× (100+2)
=8.32
=0.86×1
=2.4×100+2.4×2
(无简算)
=0.86
=240+4.8
(乘法分配律)
=244.8
(拆数，乘法分配律)
14-7.32-2.68
2.64+8.67+7.36+11.33
2.31×1.2×0.5
=14-(7.32+2.68)
=(2.64+7.36)+(8.67+11.33)
=2.31×(1.2×0.5)
=14-10
=10+20
=2.31×0.6
=4
=30
=1.386
(减法的性质)
(加法交换律和加法结合律)
(乘法结合律)
(2.5-0.25) ×0.4
9.16×1.5-0.5×9.16
3.6-3.6×0.5
=2.5×0.4-0.25×0.4
=9.16× (1.5-0.5)
=3.6×(1-0.5)
=1-0.1
=9.16×1
=3.6×0.5(可转化成3.6÷2)
=0.9
=9.16
=1.8
(乘法分配律)
(乘法分配律)
(乘法分配律)
4.5÷1.8
930÷0.6÷5
63.4÷2.5÷0.4
=4.5÷(9×0.2)
=930÷ (0.6×5)
=63.4÷ (2.5×0.4)
=4.5÷9÷0.2
=930÷3
=63.4÷1
=0.5÷0.2
=310
=63.4
=2.5
(除法的性质)
(除法的性质)
(拆数，除法的性质)
4.25÷2.5×9.9+0.1
15÷(0.15×0.4)
2.7÷45
=1.7×9.9+1.7×0.1
=15÷0.15÷0.4
=2.7÷ (9×5)
=1.7× (9.9+0.1)
=100÷0.4
=2.7÷9÷5
=1.7×10
=250
=0.3÷5
=17
(除法的性质)
=0.06
(前半部分死算，后半部分利
(拆数，除法的性质）
用积不变的规律转化，最后用乘法分配律)
