小学五年级下册数学计算题Word格式.doc
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3、简便运算
3.99×
25×
0.4 1.25+-0.5 8.9+3.6+4.1+2.4 0.25×
0.73×
4 7.8×
10.1
-(+)= ++= ++= -+= --=
二
24÷
50= 17.6+3.9= 6.1-5.78= 0.83-0.6= 0.45+2.85=
3.9+6.5= 4.5÷
3= 360÷
0.2= 4.8×
10= 70×
0.14=
+χ= χ-= χ+=2 -χ= +χ+=
χ-(-)= +2χ= 3.1χ÷
2=1.24 3.1χ×
2=15.6 8χ+2.3=18.3
7.3÷
0.24÷
4÷
73 99÷
(50×
1.11)+299 95.5-81÷
7.5-9.2 [8+(0.5-0.2)]×
0.24
(64.6-100×
0.52)÷
0.6+216 6.8×
(0.35+0.5×
4) 3.072÷
[(0.3+0.5)×
0.12]
三
口算:
4.8-0.39= 7.4×
1000= 87÷
4= 95÷
19= 0.5÷
100=
160= 25×
16= 24.72+25.7= 180×
0.1= 1.16-0.6=
21.5×
80= 7.7+0.6= 36×
0.02= 17-0.05= 32×
50=
2.2÷
0.011= 0.72÷
36= 112÷
28= 4.85+29= 256×
5=
903÷
43= 60-1.5= 3.04÷
0.8= 563+28= 25÷
20=
4-0.68= 0.18×
500= 0.77×
200= 0.44÷
8= 167×
0.3=
四
解方程:
5χ+2χ=1.47 6χ-3χ=1.2 7χ+4.2χ=11.2 9.1χ-5.6χ=63 7.5χ+χ=10.2
15χ-χ=64 18χ+7χ=60 9.5χ-χ=31.45 6χ+0.4χ=9.6 6χ+0.4χ=16
32χ+18χ=250 3.2χ-1.6χ=8 32χ+16χ=0.8 0.16χ+2.5=10.5 6χ-10.7=7.3
2.1+4χ=8.5 3χ-4.2=0.6 5χ÷
3=3.5 6×
2χ=168 2χ×
3.4=51
4.6+3χ=13 1.3χ+7.2=12.4 15+5χ=100 4χ-2.7=7.3 2.9χ÷
5=0.58
5.5χ+2=13 2.8χ-2=12 32χ÷
8=0.4 3.2χ÷
4=80 1.5χ+1=3.25
五
75÷
2.5= 308-28= 1.51+0.9= 32×
15= 1.5÷
0.09=
286÷
2.86= 0.648÷
8= 8.3÷
4= 83÷
40= 0.83÷
75×
16= 4.5÷
3= 57.2×
5= 12÷
400= 740÷
37=
3.08×
30= 9÷
150= 2.75×
2= 12.6÷
40= 0.32+1.95=
260+80.25= 2-0.125= 1.25-0.125= 3.14+0.01= 12.56÷
3.14=
15.7÷
3.14= 6.28÷
31.4= 3.54÷
3= 4.44÷
0.111= 80×
0.15=
六
10.5+χ+21=56 χ+2χ+18=78 5χ+12.5=32.3 0.3×
7+4χ=12.5
χ÷
1.5-1.25=0.75 4χ-1.3×
6=2.6 6χ+12.8=15.8 (χ-3)÷
2=7.5
13.2χ+9χ=33.3 12χ-9χ=8.7 3.4χ-48=26.8 4.2χ+2.5χ=123
χ-0.8χ=6 3.8÷
2+2χ=4.8 12χ÷
5=4.8 7χ+10×
0.53=7.4
3(χ+0.5)=21 0.5χ+8=23 0.5χ+3.4χ=8.58 0.48+χ-7.4=9.7
(2.7+3.7)χ=70.4 (4.5+χ)×
2=13 2χ-8.15=18.17 0.32χ-0.5×
4=0.56
七
0.2×
0.4= 8.2+1.8= 100-35.22= 7.5÷
1.5= 0.81÷
9=
3÷
0.5= 0.125×
8= 0.125×
16= 0.125×
12= 4.5-0.9=
0.25×
0.4= 4.8÷
0.16= 0÷
0.99= 3.52÷
1= 3÷
3.6+4.7= 0.05×
4= 1-0.08= 3.5×
0.01= 1.25÷
0.25=
3.9+0.39= 4.8+5.2= 4.8÷
16= 4÷
0.25= 0.001÷
0.1=
1÷
0.01= 2.6÷
0.13= 1.96×
4= 10÷
25= 18÷
八
2+2χ=4.8 12χ÷
5=4.8 7χ+10×
3(χ+0.5)=21 3(χ-1.5)=21 0.5χ+8=21 0.5χ+3.4χ=8.58
0.48χ-0.19=9.41 0.48+χ-7.4=9.7 (2.7+3.7)χ=70.4 (4.5+χ)×
2=13
2.5χ-8.15=18.17 0.32χ-0.5×
4=0.56 8χ-6=48 5χ-7.8=20.2
0.16χ÷
4.8=2.5 18-9+5χ=13.5 78χ+4=82 2χ-3.4=7.2
2.4χ+1.6χ=2.2 9(χ+1.1)=18.9 5χ-2+1.8=3.6 3(χ-12)=2.1
6χ+2×
2.5=41 7χ-3.5χ-11=24 3(10-2χ)=12 2(2χ+7)=42