20以内乘法练习题.docx
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20以内乘法练习题
20以内乘法练习
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9
×
19=
171
18
×
14=
252
19
×
19=
361
9
×
19=
171
14
×
1=
14
11
×
1=
11
15
×
1=
15
7
×
20=
140
15
×
8=
120
10
×
1=
10
6
×
13=
78
7
×
14=
98
1
×
17=
17
18
×
6=
108
12
×
5=
60
2
×
12=
24
5
×
9=
45
12
×
11=
132
20
×
4=
80
17
×
15=
255
19
×
17=
323
20
×
11=
220
14
×
1=
14
2
×
6=
12
11
×
18=
198
9
×
7=
63
10
×
16=
160
16
×
11=
176
8
×
9=
72
6
×
14=
84
5
×
16=
80
14
×
15=
210
13
×
2=
26
2
×
6=
12
2
×
4=
8
16
×
13=
208
19
×
1=
19
12
×
7=
84
20
×
13=
260
5
×
7=
35
9
×
15=
135
19
×
7=
133
8
×
13=
104
15
×
20=
300
5
×
9=
45
15
×
14=
210
5
×
8=
40
9
×
4=
36
18
×
4=
72
1
×
4=
4
14
×
17=
238
11
×
13=
143
20
×
19=
380
15
×
17=
255
9
×
20=
180
18
×
11=
198
19
×
5=
95
11
×
3=
33
6
×
10=
60
14
×
11=
154
6
×
18=
108
15
×
4=
60
16
×
2=
32
19
×
11=
209
10
×
16=
160
4
×
19=
76
20
×
5=
100
17
×
1=
17
11
×
8=
88
2
×
11=
22
4
×
1=
4
15
×
7=
105
12
×
10=
120
12
×
12=
144
4
×
14=
56
5
×
17=
85
9
×
3=
27
15
×
3=
45
13
×
12=
156
6
×
18=
108
7
×
6=
42
9
×
12=
108
15
×
10=
150
4
×
16=
64
12
×
18=
216
5
×
3=
15
13
×
11=
143
18
×
1=
18
15
×
8=
120
11
×
7=
77
6
×
14=
84
12
×
9=
108
13
×
14=
182
19
×
20=
380
17
×
16=
272
2
×
3=
6
6
×
20=
120
11
×
9=
99
7
×
3=
21
11
×
2=
22
20
×
1=
20
14
×
18=
252
20
×
14=
280
9
×
18=
162
18
×
1=
18
13
×
18=
234
7
×
17=
119
19
×
17=
323
1
×
17=
17
17
×
19=
323
4
×
2=
8
2
×
17=
34
1
×
4=
4
1
×
16=
16
11
×
18=
198
8
×
6=
48
18
×
8=
144
11
×
19=
209
19
×
18=
342
6
×
1=
6
19
×
13=
247
16
×
19=
304
1
×
1=
1
2
×
13=
26
17
×
15=
255
11
×
3=
33
7
×
20=
140
6
×
11=
66
10
×
19=
190
8
×
13=
104
7
×
11=
77
16
×
8=
128
13
×
13=
169
3
×
16=
48
16
×
13=
208
4
×
5=
20
18
×
13=
234
11
×
6=
66
15
×
6=
90
8
×
6=
48
16
×
17=
272
1
×
12=
12
12
×
2=
24
10
×
3=
30
17
×
6=
102
20
×
16=
320
10
×
5=
50
11
×
10=
110
5
×
9=
45
1
×
9=
9
14
×
13=
182
1
×
8=
8
16
×
15=
240
15
×
17=
255
19
×
20=
380
19
×
3=
57
20
×
12=
240
10
×
15=
150
19
×
3=
57
3
×
3=
9
16
×
1=
16
8
×
14=
112
2
×
10=
20
10
×
4=
40
20
×
16=
320
9
×
20=
180
12
×
11=
132
8
×
3=
24
13
×
4=
52
11
×
12=
132
5
×
15=
75
15
×
9=
135
4
×
3=
12
20
×
2=
40
15
×
5=
75
15
×
4=
60
2
×
12=
24
14
×
16=
224
18
×
18=
324
11
×
15=
165
10
×
14=
140
16
×
10=
160
6
×
10=
60
2
×
15=
30
10
×
18=
180
4
×
17=
68
7
×
4=
28
5
×
18=
90
1
×
6=
6
17
×
16=
272
10
×
6=
60
3
×
11=
33
19
×
4=
76
4
×
10=
40
18
×
4=
72
10
×
15=
150
19
×
17=
323
18
×
15=
270
9
×
5=
45
14
×
14=
196
3
×
14=
42
3
×
7=
21
17
×
6=
102
11
×
1=
11
12
×
16=
192
10
×
14=
140
7
×
2=
14
1
×
19=
19
6
×
12=
72
5
×
7=
35
14
×
18=
252
2
×
13=
26
6
×
8=
48
19
×
12=
228
19
×
8=
152
15
×
8=
120
13
×
1=
13
1
×
9=
9
13
×
8=
104
14
×
11=
154
5
×
2=
10
12
×
20=
240
12
×
1=
12
7
×
18=
126
9
×
9=
81
20
×
7=
140
14
×
3=
42
15
×
3=
45
8
×
11=
88
1
×
17=
17
7
×
5=
35
6
×
13=
78
14
×
9=
126
14
×
15=
210
10
×
11=
110
18
×
1=
18
11
×
9=
99
20
×
2=
40
3
×
4=
12
6
×
17=
102
11
×
4=
44
3
×
3=
9
18
×
1=
18
5
×
10=
50
7
×
16=
112
17
×
19=
323
1
×
5=
5
18
×
4=
72
3
×
2=
6
17
×
19=
323
11
×
13=
143
18
×
5=
90
7
×
18=
126
1
×
4=
4
2
×
7=
14
10
×
4=
40
18
×
18=
324
9
×
20=
180
4
×
7=
28
12
×
8=
96
16
×
19=
304
1
×
13=
13
13
×
12=
156
19
×
15=
285
16
×
3=
48
15
×
8=
120
12
×
12=
144
8
×
14=
112
3
×
7=
21
10
×
3=
30
13
×
4=
52
3
×
17=
51
9
×
4=
36
2
×
3=
6
17
×
19=
323
12
×
12=
144
6
×
18=
108
7
×
5=
35
8
×
15=
120
4
×
20=
80
11
×
10=
110
16
×
15=
240
20
×
6=
120
2
×
18=
36
6
×
4=
24
6
×
2=
12
16
×
19=
304
6
×
18=
108
3
×
17=
51
20
×
13=
260
18
×
8=
144
9
×
11=
99
12
×
16=
192
1
×
19=
19
6
×
16=
96
12
×
14=
168
4
×
8=
32
19
×
18=
342
5
×
8=
40
5
×
6=
30
7
×
4=
28
10
×
11=
110
3
×
6=
18
19
×
18=
342
18
×
13=
234
12
×
15=
180
4
×
6=
24
1
×
2=
2
1
×
5=
5
10
×
9=
90
19
×
4=
76
9
×
17=
153
1
×
8=
8
19
×
3=
57
7
×
18=
126
8
×
19=
152
1
×
19=
19
8
×
20=
160
11
×
12=
132
19
×
4=
76
17
×
6=
102
4
×
6=
24
20
×
8=
160
12
×
17=
204
8
×
19=
152
5
×
18=
90
16
×
11=
176
8
×
15=
120
2
×
15=
30
8
×
3=
24
18
×
3=
54
3
×
18=
54
5
×
6=
30
20
×
6=
120
20
×
2=
40
4
×
5=
20
9
×
7=
63
17
×
13=
221
2
×
19=
38
14
×
8=
112
9
×
19=
171
18
×
2=
36
20
×
2=
40
20
×
12=
240
20
×
5=
100
10
×
9=
90
15
×
10=
150
10
×
13=
130
5
×
8=
40
20
×
7=
140
14
×
9=
126
5
×
19=
95
18
×
20=
360
7
×
3=
21
8
×
20=
160
4
×
2=
8
14
×
2=
28
9
×
5=
45
5
×
14=
70
18
×
19=
342
9
×
19=
171
3
×
15=
45
10
×
20=
200
3
×
8=
24
6
×
19=
114
6
×
10=
60
7
×
15=
105
13
×
17=
221
8
×
18=
144
19
×
14=
266
16
×
3=
48
4
×
15=
60
7
×
2=
14
9
×
5=
45
19
×
15=
285
10
×
6=
60
16
×
18=
288
15
×
16=
240
6
×
1=
6
16
×
7=
112
19
×
19=
361
18
×
11=
198
1
×
18=
18
3
×
18=
54
1
×
11=
11
16
×
6=
96
16
×
12=
192
3
×
8=
24
11
×
17=
187
8
×
18=
144
9
×
18=
162
10
×
20=
200
17
×
9=
153
11
×
4=
44
20
×
8=
160
17
×
5=
85
10
×
6=
60
1
×
14=
14
12
×
13=
156
9
×
8=
72
14
×
17=
238
19
×
4=
76
16
×
19=
304
16
×
12=
192
13
×
18=
234
18
×
17=
306
16
×
7=
112
10
×
6=
60
11
×
20=
220
1
×
16=
16
1
×
19=
19
7
×
8=
56
16
×
17=
272
9
×
19=
171
1
×
5=
5
14
×
12=
168
5
×
10=
50
5
×
17=
85
5
×
19=
95
17
×
15=
255
14
×
13=
182
16
×
16=
256
4
×
12=
48
15
×
12=
180
11
×
4=
44
5
×
8=
40
20
×
12=
240
17
×
20=
340
10
×
12=
120
9
×
12=
108
16
×
16=
256
15
×
4=
60
1
×
15=
15
1
×
6=
6
14
×
18=
252
18
×
5=
90
13
×
2=
26
5
×
9=
45
11
×
6=
66
6
×
8=
48
14
×
17=
238
4
×
16=
64
20
×
17=
340
16
×
16=
256
5
×
1=
5
3
×
14=
42
3
×
13=
39
4
×
9=
36
9
×
14=
126
7
×
2=
14
16
×
4=
64
15
×
9=
135
4
×
10=
40
15
×
12=
180
20
×
7=
140
5
×
3=
15
20
×
14=
280
17
×
20=
340
12
×
4=
48
4
×
11=
44
13
×
20=
260
11
×
9=
99
1
×
4=
4
14
×
3=
42
13
×
4=
52
11
×
5=
55
17
×
10=
170
1
×
20=
20
7
×
19=
133
6
×
17=
102
18
×
11=
198
14
×
7=
98
20
×
3=
60
7
×
2=
14
6
×
16=
96
11
×
2=
22
19
×
9=
171
4
×
13=
52
15
×
9=
135
17
×
20=
340
16
×
10=
160
4
×
16=
64
16
×
13=
208
14
×
18=
252
1
×
5=
5
1
×
16=
16
4
×
8=
32
6
×
10=
60
8
×
7=
56
4
×
8=
32
20
×
11=
220
13
×
16=
208
15
×
5=
75
19
×
16=
304
12
×
15=
180
15
×
5=
75
18
×
11=
198
14
×
4=
56
5
×
18=
90
14
×
2=
28
10
×
1=
10
3
×
13=
39
6
×
2=
12
9
×
13=
117
19
×
9=
171
7
×
4=
28
10
×
15=
150
17
×
19=
323
6
×
4=
24
10
×
4=
40
15
×
13=
195
4
×
8=
32
10
×
12=
120
8
×
4=
32
10
×
19=
190
5
×
12=
60
13
×
7=
91
5
×
6=
30
10
×
11=
110
16
×
16=
256
5
×
14=
70
11
×
17=
187
13
×
14=
182
6
×
2=
12
15
×
5=
75
10
×
12=
120
4
×
3=
12
14
×
12=
168
1
×
4=
4
19
×
18=
342
10
×
10=
100
9
×
8=
72
8
×
6=
48
9
×
9=
81
12
×
13=
156
10
×
7=
70
19
×
2=
38
13
×
2=
26
12
×
18=
216
9
×
14=
126
8
×
1=
8
5
×
15=
75
5
×
1=
5
16
×
16=
256
9
×
14=
126
15
×
2=
30
7
×
18=
126
9
×
1=
9
10
×
19=
190
13
×
9=
117
9
×
10=
90
5
×
2=
10
19
×
13=
247
4
×
8=
32
4
×
13=
52
8
×
14=
112
5
×
15=
75
20
×
14=
280
17
×
10=
170
8
×
4=
32
14
×
16=
224
11
×
6=
66
6
×
6=
36
9
×
13=
117
12
×
19=
228
3
×
18=
54
9
×
4=
36
13
×
13=
169
5
×
15=
75
10
×
8=
80
17
×
7=
119
9
×
19=
171
8
×
15=
120
8
×
3=
24
13
×
10=
130
19
×
1=