7/9×( )=( )×1/6=17/13-( )=( )×0.9=1答案解析
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看誰算得快:
| ①23+9+17=________ | ②5+7+9+11=________ | ③73+29-39=________ |
| ④27-11-6=________ | ⑤3+17-7=________ | ⑥20-7+3=________. |
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脫式計(jì)算 8.9×2.7×1.1 |
8.25×3.4+6.9 |
8.95×36-40.74 |
| 12.8×0.5+6.43 |
3.9×5.4-2.84 |
22-1.6×6. |
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在1,2,3,4,5,6,7,8,9,10,12,1 6,18,20,24,36,40中,
24的因數(shù)有
1、2、3、4、6、8、12、24
1、2、3、4、6、8、12、24
.
36的因數(shù)有
1、2、3、4、6、9、12、18、36
1、2、3、4、6、9、12、18、36
.
24和36的公因數(shù)有
1、2、3、4、6、12
1、2、3、4、6、12
.
24和36的最大公因數(shù)是
12
12
.
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科目:xxsx
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題型:
下面各題怎樣簡便就怎樣算. (1)3.7×99+3.7 |
(2)×7.7+3.3×0.75-75% |
| (3)5.93+0.64+0.07+0.36 |
(4)(7.9-3.06÷0.68)×1.5 |
| (5)78÷2.5÷0.4 |
(6)105×(+) |
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題型:
(
+
+
)×2
37-0.37×8.28-3.7×0.172
(2
-1
)×1.6÷(1.82×
)
[6-(
+
)×30]÷(1
×0.9)
[0.75-(2
-1
)÷4]÷[(1
+2
)÷2
-
].
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題型:
(2012?西峽縣)
下面各題怎樣簡便就怎樣算. (1)3.7×99+3.7 |
(2)+- |
(3)5.93+0.64+0.07+0.36 |
| (4)(7.9-3.06÷0.68)×1.5 |
(5)5.37-1.47-2.53 |
(6)105×(+) |
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題型:
不計(jì)算,說出下面各題的積有幾位小數(shù) 4.3×2.5 |
0.25×l.9 |
3.7×0.24 |
7.205×3.5 |
| 0.03×0.1 |
6.24×5.O1 |
0.1 8×3.6 |
0.6×0.29. |
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題型:
(2008?天寧區(qū))計(jì)算下面各題,能簡算的要簡算.
(1.5+0.7)×(0.09÷1.8)
÷9+×71.2-2.3×1.6-6.32
÷[×(+)].
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題型:
| 7.2+2.8= |
0.9÷0.01= |
3.5+7.6= |
3×0.2×0.5= |
| 0.96÷0.3= |
1.5×0.4= |
7÷0.25= |
2.5×0.7×0.8= |
| 8-2.5= |
16÷1.6= |
5.6×1.01= |
8×(2.5+0.25)= |
| 0.36+0.64= |
64.32÷16= |
72.8÷0.8= |
8.4×0.2+1.6×0.2= |
| 8.4÷4.2= |
0.05×0.8= |
2.56-0.37= |
1.25×0.8×0.5= |
| 12×2.5= |
1.23×3= |
3.2÷1.6= |
3.5+3.5×3= |
| 19.6÷2= |
8.8÷2.2= |
3.9+2.03= |
7.2×0.3+2.8×0.3= |
| 13.8+9.9= |
2.4×2.5= |
0.75×4= |
(1.5+0.25)×4= |
| 4.2÷0.1= |
4.2÷3.5= |
2.14-0.9= |
27+456+73= |
| 12÷0.3= |
2.87÷0.7= |
13÷4= |
24÷4+56÷4= |
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| 3.2×0.2= |
1.4×0.4= |
3.3÷3= |
1.2÷0.3= |
0.56÷8= |
| 2.5×0.4= |
1.5×2= |
0.7×7= |
7.3+0.3= |
1.23×3= |
| 0.53-0.3= |
1.8×0.5= |
0.9×0.01= |
0.23×3= |
1.6÷0.04= |
| 2-1.2= |
7.8÷6= |
8.4÷0.21= |
8.4÷0.7= |
1.23×3= |
| 5.6+3.6= |
9-2.35= |
0.56÷8= |
7.3+2.7= |
4.8÷1.2= |
| 5.6÷0.4= |
4.5÷0.9= |
8.1×2= |
90÷3= |
7.2÷0.9= |
| 1.23+3= |
5.6+1.23= |
4.5×2= |
5.6÷1.4= |
6.6÷1.1= |
| 2.1÷3= |
0.6×0.5= |
3.23×2= |
1.8÷3= |
7.2÷6= |
| 12.5÷0.1= |
0.32÷0.8= |
1.6+3.7= |
0.45×0.2= |
4.8÷0.08= |
| 0.36÷1.8= |
0.4×0.5= |
8.4+5.6= |
8.4÷2.1= |
1.8×0.4= |
| 0.01×8= |
7.31×100= |
0.09×6= |
0.8×0.6= |
3+2.3= |
| 1.25×8= |
3÷5= |
2.3+2.3= |
6.23+3.6= |
9.3÷3= |
| 4.8÷0.8= |
7.5-4.5= |
5.7+4.3= |
0.75÷15= |
1÷0.25= |
| 1.2×60= |
6÷0.2= |
0.21×4= |
0.25×4×9= |
2.33×1.2= |
| 0.62÷0.62-1= |
5+3.2÷0.8= |
7.5÷2.5×0= |
3.9×0.01= |
0.001+10.099= |
| 3-0.98= |
6×0.25= |
0.63÷0.9= |
8.95÷0.895= |
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直接寫得數(shù). 7÷= |
19÷= |
9-= |
| 18×= |
0.37+1.6= |
4.8÷0.8= |
| 1+8%=×2= |
(-)×20= |
+= |
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題型:
口算 5×0.9= |
0.42÷7= |
0.4÷8= |
3.9×0= |
| 86÷0.1= |
30×0.05= |
20+12.3= |
54÷0.9= |
| 6.3÷0.7= |
9.54+0.46= |
10-0.1= |
1.5-0.01= |
| 0.8×6= |
3.8×0.5= |
45÷0.45= |
1.3+0.7= |
| += |
+= |
1-= |
-= |
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| 180÷60= |
12×25= |
0÷90= |
| 4×5÷4×5= |
0.25×4+4= |
131+218+269+182= |
| 25×6×4= |
420÷35= |
36×5×4= |
| 120÷5÷3= |
198-75-25= |
120-20÷5= |
| 59億-58億= |
(1.3+3.5)÷0.6= |
75÷2.5= |
| 0.45÷1.25÷8= |
2.5×7.6×4= |
97.6÷0.02= |
| 8.8-(0.25+0.4)= |
0.25+87+0.75= |
0.8-0.35×2= |
| 0.1÷0.01×0.1= |
9.9+9.9×99= |
2.7×3.6+6.4×2.7= |
| 720÷8÷9= |
2.9+5.7+2.1= |
2-0.16-0.64= |
| 16.7+84.5-16.7= |
6.8-(3.8+2.9)= |
9×1.3+9×6.7= |
| 5.5-5.25+5.2= |
0.8×25-10= |
42.8×25×4= |
| 7.2+2.8= |
0.9÷0.01= |
3.5+7.6= |
| 3×0.2×0.5= |
0.96÷0.3= |
1.5×0.4= |
| 7÷0.25= |
2.5×0.7×0.8= |
8-2.5= |
| 16÷1.6= |
5.6×1.01= |
8×(2.5+0.25)= |
| 0.36+0.64= |
64.32÷16= |
72.8÷0.8= |
| 8.4×0.2+1.6×0.2= |
8.4÷4.2= |
0.05×0.8= |
| 2.56-0.37= |
1.23×3= |
25×0.8×0.5= |
| 12×2.5= |
3.2÷1.6= |
3.5+3.5×3= |
| 19.6÷2= |
8.8÷2.2= |
3.9+2.03= |
| 7.2×0.3+2.8×0.3= |
13.8+9.9= |
2.4×2.5= |
| 0.75×4= |
(1.5+0.25)×4= |
4.2÷0.1= |
| 4.2÷3.5= |
2.14-0.9= |
27+456+73= |
| 12÷0.3= |
2.87÷0.7= |
13÷4= |
| 24÷4+56÷4= |
2.1×0.3÷2.1= |
2.3-0÷8.1= |
| 1.37-1.37÷1.37= |
4.4÷(5×0.2)= |
7×1.3= |
| 0.96÷0.06= |
0.36×0.3= |
0.35÷0.7= |
| 13.65÷13= |
4×0.8×0.25×1.25= |
13+0.7÷0.7= |
| 7.05×23.7+7.05×76.3= |
0.125×3.2×2.5= |
(12+23.1÷0.75)×0.4-5.12= |
| 728+199= |
637-201= |
16×25= |
| 1.6×[(12-7.2)÷(0.84÷2.1)]= |
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下面各題,能簡算的要用簡便方法計(jì)算.
| 7.9+0.46-0.9+0.54 |
30÷2.5+1.6×2.5 |
1.25×19.4×0.8 |
4.3×10.2. |
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(1)3+5+7+9+…+73+75
(2)1÷(1÷2)÷(2÷3)÷…÷(1999÷2000)÷2000
(3)1240×3.8+124×51+1.24×1400+760×9.6+0.76×700
(4)8888×1111+4444×7778.
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用喜歡的方法計(jì)算下面各題.
3.7+3.7×9
8.8×12.5
5.4÷1.25÷8
3.59×0.64+0.36×3.59.
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口算
| 600×5= |
52÷6= |
34+8= |
40×9= |
38×7= |
| += |
92-8= |
0×24= |
1-= |
121×3= |
| 4×7+5= |
-= |
700×8= |
28÷9= |
42×5= |
| 56÷7= |
9×200= |
3800-800= |
+= |
392×6= |
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題型:
計(jì)算下列各題. +(+)× |
(7.9-3.06÷0.68)×1.5. |
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題型:
直接寫出得數(shù). -= |
÷= |
2-= |
6÷1%= |
| 1-7÷9= |
÷= |
24×0.5= |
1÷= |
| (+)×0= |
2×17= |
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看誰算得又對又快. 4+6= |
13-10= |
15-4= |
90+10= |
18-8= |
| 8+5= |
16-6= |
7+6= |
8+4= |
30-5= |
| 6+7= |
9-3= |
4+9= |
7+8= |
5+7= |
| 10-3= |
8+8= |
20+6= |
6+9= |
12+8= |
| 5+0= |
100+100= |
8+3= |
8+9= |
15+4= |
| 6+8= |
2+9= |
20-1= |
3+8= |
13-5= |
| 50-50= |
60-50= |
4+8= |
5+9= |
7+7= |
| 7+10-4= |
8+2+6= |
4+9+6= |
14-9+15= |
18-8+3= |
| 16+10-6= |
15-8+13 |
8+9+3= |
20-5-4= |
60-20-10= |
| 28-8-17+3= |
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