2+3.7= 9.1+18.1= 5.3-1.5= 2-0.45= 10-9.88= 26.1+24= 查看更多

 

题目列表(包括答案和解析)

口算
1
4
×
1
3
=
4
7
÷2
=
1
2
÷
1
2
=
10÷
5
6
=
2
3
×
3
4
=
9
10
÷
1
5
=
1
6
÷6
=
8
9
÷4
=
15×
4
5
=
15÷
1
3
=
3
4
×
2
9
=
2
3
÷
1
2
=
2
5
×
1
2
=
1
2
÷
1
4
=
1
2
×
1
4
=
4
5
÷
1
5
=
3
7
×14
=
1
4
÷
1
2
=
1
2
-
1
4
=
4
9
×
3
4
=
5
8
×
2
5
=
1
6
÷
2
3
=
1
2
+
1
4
=
3
5
÷1
=
7
15
×5
=
3
4
=
1
2
÷
1
4
=
3
5
=
3
4
×12
=
1
5
÷
2
3
=
7
9
×
3
7
=
1-
3
5
=
18×
5
6
=
7
5
=
1
3
+
1
6
=
1+
3
5
=
2
9
×
1
4
=
8
3
÷2
=
3
5
÷
2
5
=
5
9
÷3
=
5
6
×
3
10
=
2
5
÷
1
2
=
1
4
=
3
4
=
30×
1
3
=
4
5
÷2
=
5
24
÷
5
6
=
5
8
×
1
2
×0
=
1
3
×
3
11
=
1
4
=
9
10
÷
3
5
=
1
3
÷
1
2
=
9
11
=
2
5
÷
1
5
=
1
3
÷
1
3
=
2
9
÷
1
2
=
5
6
×
6
5
=
1
5
÷
1
3
=
5
12
=
1
2
÷
1
2
=

查看答案和解析>>

口算.

(1)0.340.45=

(2)7.72.6=

(3)3.60.8=

(4)0.390.15=

(5)64.6=

(6)0.350.18=

(7)0.080.92=

(8)7.41.6=

(9)3.54.25.5=

(10)7.81.52.3=

查看答案和解析>>

口算.

(1)0.340.45=

(2)7.72.6=

(3)3.60.8=

(4)0.390.15=

(5)64.6=

(6)0.350.18=

(7)0.080.92=

(8)7.41.6=

(9)3.54.25.5=

(10)7.81.52.3=

查看答案和解析>>

10×2= 72-47= 20×5= 27+15= 20÷2=
63÷3= 27×5= 510÷3= 40×9= 23×30=
84÷4= 15÷3= 12×4= 513×9= 4×815=
99÷9= 75÷5= 205÷5= 46×10= 24×20=
872-124= 27+127= 700÷5= 350+70= 591÷3=
8×122= 178÷2= 30×80= 800÷8= 265+85=
110×35= 901÷3= 0÷245= 0×245= 0+245=
245÷5= 3000-300= 605÷5= 50×50= 306÷3=
702-199= 480÷3= 120×80= 27×8= 62×15=
860÷4= 19×5= 40×20= 520-430= 51×17=
15×61= 87÷3= 91×31= 80÷10= 465÷5=
870÷8= 400×20= 210÷7= 4500÷9= 5×80=
300×30= 88+112= 380÷7= 36×8= 86×7=
27×90= 33÷3= 880÷8= 480÷8= 22×22=
16×50= 19×39= 270÷30= 92×7= 38×60=
14×4= 130×4= 810÷3= 72-24= 16×4=
6
13
-
1
13
=
6
7
+
4
7
=
6
5
-
1
5
=
7
10
-
3
10
=
1
3
+
2
3
=
2
9
+
4
9
=
8
11
-
4
11
=
6
17
-
4
17
=
8×7+6= 6×7+6=
36÷3÷2= 5×5+4= 50-24÷4= 9+9÷9= 800-800÷4=
8×9-7= 72-72÷6= 8+2×10= 90-30÷3= 6×80-20=
12×3÷3= 5×8-8= 57×3×0= 86-86÷2= 8×2×7=
24+15+6= 18÷3-4= 50×6+0= 45+55÷5= 70×(40-32)=
300÷2÷5= 960÷4÷2= 51-4×6÷3= 3000-6×408= 500-412÷4=
(400-394)×706= 1+2+3+4+5+6+7+8+9+10= 1+11+111+1111+1111= 1+12+123+1234+12345= 10000-1000-100-10-1=

查看答案和解析>>

计算:
(1)2002×
1999
2001

(2)3.5×1
1
4
+1.25×2
7
10
+3.8÷
4
5

(3)0.125×2
3
4
+
1
8
×6.25-12.5%

(4)1÷(1.3÷1.7)÷(1.7÷7)÷(7÷2.6)
(5)(5.77×4
2
7
+3
2
7
×5
7
10
)×(3
2
7
-1÷
7
23
)

(6)(5
11
13
+4
16
19
3
5
+0.6×(4
2
13
+5
3
19
)

(7)
1
2008
+
2
2008
+
3
2008
+…+
2006
2008
+
2007
2008

(8)[(
1
5
-
1
6
)×1.5+2.45]×(1.7-1
7
10
)

(9)51
1
4
×
4
5
+61
1
5
×
5
6
+71
1
6
×
6
7

(10)
7
12
-
9
20
+
11
30
-
13
42
+
15
56

查看答案和解析>>


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