精英家教网 > 小学数学 > 题目详情

口算

18×3=     90÷18

练习册系列答案
相关习题

科目:小学数学 来源: 题型:

口算
18-8+2
48+25-48 88÷88×1
60÷12×6 125÷5÷5 100÷25×4
15×6÷90 45÷45×100 15+2-15+2.

查看答案和解析>>

科目:小学数学 来源: 题型:

口算
32×100= 1-0.26= 15+0.5= 6-0.43=
4.5+5.5= 6.2-0.7= 2.3+4.7= 29+56=
1.4+0.8= 0.48-0.18= 5.6+3= 64÷8×9=
230×30= 280÷20= 9.3÷100= 36+24-12=

查看答案和解析>>

科目:小学数学 来源: 题型:

口算16×3时,把16分成
10
10
6
6
,先算
10×3=30
10×3=30
,再算
6×3=18
6×3=18
,最后算
30+18=48
30+18=48
,所以16×3=
48
48

查看答案和解析>>

科目:小学数学 来源: 题型:

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>>

科目:小学数学 来源: 题型:

口算.
6×7=
9×9= 3×6= 2×6=
8×3+4= 36+4= 8×7= 2×2=
9+57= 3×4+9= 5×6= 18+60=
9×3= 5×5= 38-18+25= 41-2=
6×9= 8×5= 7×2= 7×5-3=

查看答案和解析>>

同步练习册答案