二年级下册数学口算能力快速提升训练∣全国通用
岁月缝花-肺炎的早期症状
(1)
13+70= 20-13= 28+13=
43+9= 16-9=
86-19= 58+15= 83+12=
47+12= 35+46=
45-7= 72-54= 73-51=
14+27= 91-12=
44-16=
88-19=
4+50=
70-22=
61+2=
68-39=
18+23=
5×6= 5
9×6=
9
3×6= 6
8×1= 8
20-11=
17+54=
49+14=
9+45=
74+12=
16-8=
42+50=
76-67=
90-14=
15+28=
20-6=
80-12=
11+49=
×7= 5
×7= 7
×5=
3
×2= 4
14-6=
42+13=
63-29=
4+30=
5+8=
11+29=
78-19=
62+19=
42+30=
5+14=
59+13=
20-8=
85+10=
×8= 5
×2= 9
×7=
3
×3= 8
49-11=
14+67=
(2)
73+10=
97-68=
25+14=
20-6=
第 1 页
53+17=
59-19=
60-6=
66-39=
12+73=
19-6=
16-7=
×9= 8
×8=
9
×8= 3
×3= 8
19-4=
12+45=
46+5=
28+6=
16-6=
5+13=
48+22=
67+10=
70-13=
11+62=
74-15=
1+18=
99-66=
×7=
×9=
×9=
×4=
20-9=
24+18=
29+12=
20-13=
84+9=
51-15=
12+78= 14-7= 18-3= 20-12=
80-12=
20-8= 19-6= 10+18= 18+19=
100-1=
11+4= 5+10= 96-49= 20-11=
77-68=
14-5= 99-90= 49-43= 20-13=
54-16=
11+17=
97-19=
5×6=
3
4×6= 7
6×5= 7
6×1=
7
69+12= 56
98-44=
6+12=
65-57=
58+13=
39-13=
15+66=
15+27=
12-5=
36+47=
10+59=
24-15=
27+28=
×7=
5
×7= 2
×5= 8
×2=
9
-27= 13
51-12=
14-5=
25-8=
36-18=
10+21=
9+28=
20+14=
22-16=
58-19=
12-3=
34—6=
24+7=
×8=
2
×8= 5
×7= 9
×3=
6
+49= 89
13+29=
(3)
16-5=
10+37=
73-5=
30-7=
11+6=
29+19=
18+58=
8+36=
100-8=
第 2 页
12+4=
19-8=
×9= 9
×4= 6
×7=
5
×4= 7
+2= 38-19=
68+24=
6+14=
33-8=
100-34=
78+4=
6+12=
16-7=
77-19=
6+27=
73-17=
4+10=
40-5=
×9=
×9=
×3=
×7=
78-19=
12-5=
15+27=
30+9=
39+6=
49+12=
55-8=
18+3=
15-8=
23+67=
17+27= 100-18= 71+14=
11+89= 45+16=
3×6= 5×7=
5×9= 2×6= 8×3=
2×4=
9×7= 5×2= 5×8= 4×9=
5×6= 4×5= 6×7= 6×8=
7×9=
5×5= 3
92-17=
19+12=
100-30=
12+7=
6+12=
9+90=
8+8=
6+12=
8+3=
70-1=
9+11=
19-12=
5×6= 3
4×6=
7
2×5= 7
9×1= 4
×2=
4
20-12=
5+48=
19-1=
8+4=
4+12=
16-7=
12-2=
10+5=
73-40=
1+39=
20-2=
10+4=
×7= 5
×7=
2
×5= 8
×2= 9
×4=
5
8+63=
49+14=
(4)
10+51=
9+8=
5+2=
12-5=
26+4=
12-3=
3+11=
11+9=
8+6=
4+14=
×8= 4
×8=
5
×6= 9
×3= 6
第 3 页
×3= 1
100-15=
85-9=
13-3=
11+6=
20+14=
2+16=
18-10=
10+8=
17+2=
4+16=
10+10=
1+9=
×9=
9
×4= 6
×7= 5
×4=
7
×4=
68+15=
58-39=
88+12=
13-6=
17+10=
16+3=
8+3=
13-3=
17+2=
7-10=
8+5=
5+3=
×9=
×4=
×3=
×7=
1
1
1
70-17=
14+29= 86-69= 15+47= 16-8=
16+18=
51-28= 37+36= 84-19= 100-38=
(5)
49+14= 12-5= 11+12= 33+17=
18+73=
17-10=
45+19=
11+9=
77+11=
32-16= 71-23=
43
57+14=
17+67=
57+11=
36+19= 47
2×2=
8×4=
1×7= 5
6×1=
35-19=
29+16= 71
27+14=
18+13=
58+12=
39+17=
58-19=
91-65=
29+15=
91-67=
12-6=
+14=
16
5×9=
4×9=
×5= 4
2×2=
13+69=
-15= 61
29+18=
40-14=
17+29=
20-12=
12+49=
17-8=
+29= 100-37=
38
80-4=
9+22=
67-38=
+47= 32
2×4=
2×1=
×8=
3
5×9=
71-45=
-33=
49
(6)
84+8=
57+8=
第 4 页
15-7=
17-9=
20-12=
48-29=
12+88=
10+60=
28+65=
+29= 87
3×9=
5×3=
×8= 9
2×4=
80-11=
+14= 35
81-18=
37+26=
9+18=
32-15=
65-9=
20-7=
+14=
14-7=
18+27=
20-12=
-8=
9×8=
4×6=
×4=
3×9=
49+21=
-17=
13+29=
29+18=
18-6= 14+37= 81-16=
49+24= 82-25=
16-7= 21-13=
11+29= 51-23= 62-35=
73+19= 67+25=
13+47= 61-15= 15+49=
100-2= 58-19=
23-5= 39+48= 9+15=
36+8=
20-13=
42-15=
34-19=
48
9×1= 6
5×3=
4
5×4= 5
5×6=
3
4-7=
66-27=
12-5=
12+3=
45+17=
12+27=
17+36=
18-4=
11+4=
15+4=
14+27=
58+13=
+25=
49
×3= 8
×6= 3
×7=
2
7×4=
53-15=
9+15=
5+11=
5+37=
20-9=
00-37=
20-8=
48+10=
15+26=
90+10=
63-16=
57+16=
+35= 88
×4=
4
×7= 2
×6= 3
9×5=
53-28=
80-26=
(7)
19-8=
19-14=
59-24=
20-13=
16-8=
13+37=
19+14=
第 5 页
25+18=
81-47=
62-13=
+12= 25
×9= 2
×5=
1
×3= 4
6×4=
12+59=
78-19= 9
12+69=
12+34=
59+25=
52-37=
12+45=
57-28=
20-14=
23-5=
60-11=
55-17=
+18=
×1=
×8=
×4=
1×5=
27+16=
1-24=
16-7=
17-11=
19+15=
74+17=
16+18=
19-6=
80-8=
2
1
14+67=
15+29= 55+10= 5+65= 12-5=
91-2=
47-8= 14+2= 57+13= 35+6=
56-13=
44-18= 54-15= 41-34= 88+12=
2×5= 1×8= 5×4=
5×7= 2×6=
4×4= 5×6=
7×4= 9×5= 6×4=
2×8=
7
1×4= 2
65+8=
52+35=
24+5=
59+11=
15+36=
20-9=
12+8=
12+29=
19+16=
18-4=
11+49=
54-16=
4×7=
3
3×7= 1
9×3= 2
7×5=
1
×3= 1
×3=
5
74-37=
76-29=
19+11=
13-8=
19-4=
37-16=
19+12=
100-3=
40-18=
38+15=
10+72=
45-27=
×3= 7
×5=
4
×7= 1
×7= 5
×3=
3
×7= 9
81-19=
5+49=
(8)
14+34=
22-6=
12+38=
16-7=
17-8=
20-13=
86-18=
23+7=
19+14=
5+10=
×5= 6
×5= 4
×1=
5
×5= 4
第 6 页
×4=
3
×2= 3
13+59=
27+57=
17-14=
51-19=
43-15=
59-28=
37+36=
12+72=
12+47=
17-8=
20-4=
95+5=
×1= 6
×7= 8
×8=
8
×8= 3
×6=
×5=
73-58=
70-36=
20-14=
15+47=
63+13=
17-14=
14+48=
57+10=
19+18=
19-6=
30-17=
32-15=
×3=
×9=
×3=
×8=
1
71-32=
57+28= 14+29= 52-13= 45+16=
62-13= 84-17= 49+15= 74-35=
85-17=
(9)
20-7= 18-17= 12-5=
45+6= 67+13=
58+12=
13+19=
36+19=
55-11=
40-14=
14+55=
59-27=
24+29=
37+14=
9×4=
6
1×5= 2
3×6= 4
7×9=
2
56-28=
13-4=
17+35=
100-30=
27
47+7=
23+18=
59+13=
17+66=
31-13=
71-9=
14+18=
7+11=
20-15=
69-15=
×1=
4
×8= 7
×5=
×5=
3
16+38=
27-9=
47+13=
+14=
30
91-24=
91-8=
19-4=
46+19=
81-12=
91-29=
85-17=
14+3=
19-13=
28-19=
×6= 3
×3= 1
7×6=
7
×5= 4
37-19=
37+15=
(10)
11+59=
-12= 24
71-34=
第 7 页
32+16=
15+37=
11-5=
68+14=
37+12=
39+15=
90+9=
70-15=
23+17=
×7=
6
×3= 3
×7= 7
×5=
5
55-17=
38+17=
27-14=
+57= 28
77-18=
56-27=
27+15=
66+27=
27+44=
20-12=
84-29=
19-2=
67-18=
45+19=
×4=
×4=
×8=
×5=
77+26=
42-14=
35+11=
+11=
37+14=
55-19= 12-5= 7+26= 16-8=
14+38=
20-8= 22+6= 25+17= 31-13=
19+12=
67+14= 24+7= 60-19= 15+19=
19-9=
19-4= 37+12= 14+25= 34+16=
54+15=
28+11=
14+30=
4+90=
2×2= 5
6×3= 8
2×5=
1
3×3= 4
39+47=
53
66+17=
7+14=
37+13=
24+14=
19-2=
7+16=
5+11=
36+12=
15-12=
11+19=
24+15=
6+12=
50-25=
×9= 2
×4=
4
×8= 5
×4= 5
-15=
18+35= 73-17= 75
61-33=
26+6=
11+5=
20-2=
17-3=
16-8=
6+34=
99+1=
12+19=
19-12=
19-7=
13-6=
19-3=
×4= 3
×9=
2
×4= 5
×6= 7
27+39=
(11)
38-21=
7+42=
45+15=
17-11=
50-18=
19-10=
13+35=
46-29=
95-5=
第 8
页
7+15=
69+9=
20-18=
×9= 9
×1= 5
×7=
2
×4= 9
45-17=
20-7=
10-3=
14+17=
85-29=
12+16=
14+46=
23-9=
75-14=
13+18=
39+9=
19-2=
47-38=
×1=
×3=
×6=
×5=
+19=
27+66=
14+26=
46+4=
19-7=
12+55=
27+17=
13+38=
72-6=
13-7=
10+70=
91-14= 51-25= 18-9= 21-7=
20-7=
6×1= 6×2= 6×3=
6×4= 9×1=
3×6= 3×7=
3×8= 3×9= 9×2=
8×1=
8×2= 8×3= 8×4= 9×3=
6×6= 6
66+18=
71-27=
91-2=
10+25=
2+70=
55-16=
25+29=
33-17=
35+8=
20-8=
42-14=
35+16=
4×6=
4
5×1= 5
7×6= 3
2×5=
3
×7= 6
81-27=
73-15=
2+17=
100-13=
12-6=
38+11=
13+38=
30-7=
20-7=
55+11=
6+12=
15-7=
×7= 4
×2= 5
×3=
7
×5= 4
×8= 6
20-14=
29+23=
(12)
6+36=
12-3=
37-9=
62-13=
51-15=
20-12=
19-14=
5+13=
19+11=
2+19=
×8= 4
×3=
5
×7= 7
×5= 3
第 9 页
×9= 9
33+47=
81-15=
15+17=
20-12=
24-19=
24-6=
12+59=
25-17=
71-3=
19-10=
13+5=
56-29=
×9=
3
×4= 3
×8= 7
×4=
5
×4=
45-18=
28+17=
20-9=
6+14=
57+13=
18-5=
15-2=
90-1=
100-3=
40+60=
23+9=
50+40=
×1=
×2=
×9=
×5=
1
18+19= 19-12= 15-6= 30-11=
10+70=
91-34= 15+57= 58-19= 71-25=
60-18=
(13)
12+38= 17-14= 60+11=
20-15= 12+39=
22+19=
3+91=
25+17=
14+57=
52-17=
35+6=
38
5+9=
3+17= 10
15+28=
4×1= 4
6×6= 6
2×6=
2
7×1= 9
20-8=
24+48=
70-3=
33-7=
51-13=
25+14=
36+26=
90-3=
12-6=
+11= 6
13+3=
+7= 20
20-7=
×2=
4
×7= 6
×7= 2
×5=
7
59+12=
26+17=
27+14=
22-5=
24+16=
12+39=
1+89=
32-8=
37+19=
+13= 14
1+15=
-2= 25
93-25=
×4=
7
×1= 6
×8= 2
×3=
7
58+13=
90-15=
(14)
20-9=
60-14=
第 10 页
18-13=
23-4=
18+55=
20-4=
54-28=
+26= 81
12+5=
+17=
90
17-13=
×5= 8
×2=
6
×9= 6
×4= 6
91-16=
13+59=
81-5=
71-24=
20-17=
75-8=
53-7=
46+14=
35-18=
-25=
2+6=
-11=
10-3=
×5=
×3=
×8=
×9=
40-16=
43-29=
10+50=
10+37=
20-5=
2+79= 15-3= 48+16= 45-18=
18-3=
33+19= 15+46= 12+30= 17-12=
3+14= 17-8= 71-10= 13-5=
13+77=
14-5= 87+5= 50-14= 46-15=
48+13=
34-9=
10+50=
10+35=
10+90=
9×1= 6
8×6=
6×5= 7
4×6= 7
36+13=
40-13=
13+17=
20-13=
51-2=
40+14=
70+12=
56-19=
83-50=
16-3=
11-8=
39+13=
19-11=
×4= 9
4×7=
8
×5=
8
×3= 4
17+28=
50-11=
18-9=
70-11=
15-7=
51-14=
6+13=
31-6=
13+77=
12+80=
47+33=
15+19=
13-6=
×2= 9
×8= 8
×5=
9
×8= 4
81-25=
80-41=
(15)
55+13=
91-12=
38+11=
32+9=
10+60=
47+16=
14-5=
第 11 页
41+17=
28+13=
51-23=
91-25=
×3=
9
×9=
×5= 7
×9=
7
13+80=
23+68=
40-12=
82-17=
16+19=
20+70=
62-15=
37-8=
87+5=
20-12=
50-13=
58-19=
19-12=
×4=
7×1=
×2=
×4=
36-29=
48+34=
31-8=
19-11=
40-13=
62-14=
16-7=
13-5=
5+14=
16-5= 18-5=
4+9= 16-3= 5+13=
12+8= 1+70=
18+5= 11+28= 27+13=
8+30= 51-23=
10+30= 19+13= 32-19=
5×1=
5×2= 5×3= 5×4= 5×3=
5×4= 8
5×6= 7
9×6=
9
51-19=
13-6=
18-7=
26+8=
63
13+5=
20-12=
2+59=
3+11=
25+7= 19
6+61=
17-10=
16-5=
3×6= 8
8×1=
8
×6= 8
×7= 9
×7=
9
11+38=
81-33=
7+22=
-7=
47
18-9=
17-13=
18-7=
60+9=
-10=
16-8=
53-5=
18-5=
×6= 3
×2= 8
×7=
8
×9= 5
×8= 9
100-11=
19+55=
(16)
80+11=
+6=
16
25+14=
20-10=
91-12=
42-14=
68-32= 84
11+69=
13+57=
54+19=
×7=
3
×3= 8
第 12 页
×8=
8
×8= 5
×9= 2
91-15=
68+13=
29+11=
-9= 19
58+13=
57+11=
15-8=
11+19=
+7=
49
40+16=
24-15=
36-18=
×8=
3
×4= 2
×9=
×9=
×7=
58-9=
71-25=
11-2=
-10=
34+19=
19-2=
51-5=
13-7=
-18=
31-23=
8+15=
58+13=
×9=
×9=
1
6×6= 8×7=
6×7= 6×8= 6×9=
9×1=
8×8= 9×2= 9×3= 9×4=
52-8=
83+17= 54-25= 16+60=
51-8=
28+34= 51-33= 100-35= 39+36=
52-19=
11+6=
2+11=
17-5=
14-7=
35-7=
5+14=
7+3=
2+9=
6+9= 4
19-10=
7×1= 6
5×6= 9
9×6=
8
6×7= 5
61-25=
16+45=
28
8+5=
55-6= 6
4+12=
16-4=
4+28=
8+1=
20-10=
18-7=
+14=
37+15=
×5=
7
×5= 5
×5= 9
×9=
7
39+26=
+14= 57-38
(17)
17+2= 5+11=
+29= 72-5=
37
19-7= 19-9=
4+7= 16-9=
76-4=
18-9=
5+13= 20-12=
7+11= 19-12=
15-2= 3+11=
27-9= 8+43= 41
29-20=
7+85=
×2= 7×3= 7
×7=
5×8= 7
×7= 9×8= 9
×5=
4×5= 8
13+29= 80-12=
=
46+54= 100
第 13 页
8+10=
+8=
4+11=
19-10=
14-5=
10+5=
10+3=
6+13=
-12=
16-7=
×4=
×9=
×9=
×6=
82+12=
-68=
(18)
77-40= 69+8= 45-9=
21-3= 70+10=
16+23=
50-16=
25+5= 63-50=
27+18=
16+26=
38+5= 90-1= 37+14= 46-29=
14+27= 52-16= 48
9+10=
17-10=
3+16= 19
16+4=
6+30=
8+3=
6×6= 6
9×2=
7
7×2= 7
8×6= 8
74+18=
51-24=
7+48=
12-3=
6+8=
56+6=
54+14= 40
11-3=
-4=
15-8=
30+6=
10+8=
×7= 6
×6= 9
×3=
7
×7= 8
16-5=
11+80=
80-1=
16+3=
13-5=
38+5=
+13= 12
-17=
24
14-5=
68-32= 84
18+2=
14-5=
14-7=
×8= 7
×3=
9
×4= 5
×8= 7
73+14=
9+65=
(19)
2+12=
10-3=
16+10=
90-1=
第 14 页
-5=
70-4=
+36=
50+14=
+7=
49
18-11=
13-6=
27+15=
×3= 6
×4= 7
×3=
7
×7= 8
93-19=
83-27=
40+4=
18-4=
16+2=
3+14=
9+9=
11-2=
-18=
6+6=
11+8=
46-28=
×9=
×5=
×8=
×9=
17-8=
80-1=
19+11=
23+17=
27+38=
61-2=
83+17= 54-5=
16+60=
12-5= 7+4=
80+14= 77-9=
18+21=
18+27= 29+9=
17-10= 11-3=
14-5= 5+14= 11-2=
3+16= 19-4=
14+3= 31-15= 67+6=
16+4=
6+35=
2×5= 6
5×6= 6
9×6=
9
6×5= 7
8+33=
57+18=
18-4=
4+40=
19-17=
6+8=
6+6=
28
14+2= 27
3+16=
16+4=
6+3=
15-8=
10+6=
×1=
3
×2= 5
×7= 6
×5=
6
100-18=
61-24=
19+11=
12-3=
18-2=
13-5=
+15=
19
+16=
19-4=
15-8=
10+6=
18+23=
14+56=
×5=
4
×7= 5
×3= 9
×4=
8
44-17=
37+44=
(20)
18-12=
61-35=
100-30=
69+11=
-13= 38
48+9= 50
14+3=
18+2=
14+25=
第 15 页
18-9=
13-10=
×5= 5
×8=
5
×8= 9
×5= 9
23+17=
59+19=
29+12=
20-12=
18-4=
16+2=
+14= 16
-3= 26
11-2=
18-1=
13-4=
56+16=
11+89=
×5=
×9=
×9=
×5=
27+19=
75-18=
26+47=
6+12=
35+17=
67-28=
-12=
+25=
7+66=
26+6=
11+8=
8+23= 10+80=
14-7= 26+25= 49-26=
8×1= 7×6=
8×2= 8×3= 8×4=
6×6= 6×7=
7×9= 6×8= 6×9=
9×1= 7×7=
9×2= 9×3= 9×4=
8×6=
8
90+10=
17-9=
19-2=
15-2=
8+11=
15+3=
23+8=
16-4=
20-2=
4+4=
2+16= 17
6+6=
19
6×9= 1
4×9= 3
7×2=
8
2×6= 2
×7= 8
11+7=
51-3=
9+8=
20-7=
5+11=
1+29=
15+24=
15+5=
7+10=
20-6=
-2=
-4= 8
×2= 4
×3=
6
×5= 9
×9= 5
×8=
7
13-5=
14-5=
(21)
20-4=
18-7=
18-5=
6+11=
13+6=
12-3=
5+6=
17-6=
37-9=
6
+10= 6
×3= 6
×6=
4
×7= 3
×6= 4
第 16 页
×8= 8
18+17=
58+14=
12+2=
100-1=
5+8=
12+5=
15+4=
13+7=
20-9=
19-1=
+43=
43
+9= 5
×7= 5
×8=
6
×8= 6
×5= 8
×9=
59+19=
73-5=
9+11=
5+6=
14+2=
16-1=
1+19=
12+2=
8+6=
17-4=
-11=
+9=
×5=
×4=
×8=
×4=
69+13= 11+7= 13+3=
8+28= 13-5=
28+19= 25+27=
11+79= 39-12= 80+20=
(22)
36+16=
9+11= 10+10= 4+60= 15+5=
20-4=
18-7=
5+8=
12+5=
18-5=
13+7=
12-3=
19-11=
57-26=
9×6= 9
4×6= 6
8×1=
2
3×4= 6
36+9=
8+15=
16-4=
10+10=
12+2=
100-10=
15+3=
13+8=
31+19=
70-12=
20-9=
32+16=
35+15= 49
×8=
7
×5= 3
×2= 3
×7=
8
16+13=
76+18=
14+4=
4+6=
15-2=
8+11=
17+14=
58+4=
16-4=
17+10=
46+4=
17-5=
-30= 7
×7= 5
×7=
3
×3= 6
×8= 7
11+27=
97-30=
(23)
13-5=
20-4=
第 17 页
20-7=
54+11=
6+11=
33+6=
15+5=
5+6=
20-6=
100-3=
+46=
80
×6=
8
×8= 5
×3= 7
×9=
9
13+3=
65+8=
9+11=
12+2=
10-3=
18-5=
14+35=
16-4=
12-3=
20-9=
17-26=
49-22=
+10=
×7=
×9=
×4=
×9=
18+28=
45-7=
15-2=
9+11=
15-2= 20-7= 18-7= 10-1=
5+6=
8+11= 5+11= 5+8= 15+3=
20+14=
6+11= 12+5= 3+8= 5+4=
3+6=
5+13= 16-5= 18-4= 4+8=
16-12=
1+60=
8+2=
10+3=
15-1=
5×7= 4
4×6=
7
6×3= 7
6×5= 3
33+16=
47
48+9= 50
12+2= 18
10+1=
7
19-7= 15
13+7= 6
11+3=
15
20-4= 9
18-7= 18
10+5=
1+19=
18-6=
15-4=
×7=
5
×7= 3
×5= 8
×2=
9
+13=
-3= 26
-2=
14
+8=
-6=
+13=
14
-2= 10
+11=
-4=
11
7+13= 11+7= 11+3=
7+10=
19-11= 10+2=
5+30= 13-2= 18-2=
4+9= 6+8= 10+1=
×4=
4×9= 9×9=
×8= 5×6= 6×9=
×7= 9×7= 5×4=
×6=
8×4= 3×9=
20-14= 97-19=
28+22=
+25=
4+11= 19-7=
(24)
+5= 6+9= 6+8=
54+26= 40-27= 44+36=
35-7=
4+28= 76-4=
+4= 6+66=
13+6=
+2= 3+8= 12+2=
56+17= 51-8= 26+60=
+5=
5+13= 16-4=
第 18 页
16-5= 4+8=
68-32= 84+7= 49-18=
7+13=
11+7=
83+17= 54-5= 16+60=
19-11= 10+3=
70+14= 77-9=
18+21=
3×6= 5×7= 5×9=
6×6= 8×3=
2×4= 9
5×6=
8
7×5= 3
23-8= 65
16+28=
13
6+9= 18
16-4= 16
51-13=
28
54+14= 40
19-17= 15
6+13=
15-8= 10
9+11= 16
18-17=
28
12+5= 20
2×9= 5
8×4=
4
×7= 5
×9= 6
×2=
4
-11=
+36= 48-13=
12
+14= 15
-2= 10
-9=
14
-17= 24
-6= 71
77-40=
69
+2= 33
+9= 67
-4=
11
-11= 17
×6= 2
×9=
7
×2= 5
×7= 6
×4=
5
68-32= 84
(25)
+4=
37
+5= 7
+5= 48
+36=
-2= 13
+8= 45
+18=
20
+21= 25
+55= 30
-7=
51
×6= 3
×1= 5
第 19
页
×8= 4
×8= 7
×3=
5
+7= 49
+48= 18
+11=
5
+18= 19
+36= 26
+37=
23
+37= 15
-19=
-14=
45
+11= 13
+13= 11
-5=
13
×9= 6
×3= 4
×9=
×9=
×4=
-18=
+19=
+13=
-11=
+19=
+11=
+47=
+2=
-16=
+27=
+4=
-6=
×8=
×6=
13
18
4×7=
6×5= 4×8= 3×8= 9×4=
6×1= 2×2= 6×9=
3×4= 3×7=
34-8= 13+15=
41-2= 19-13= 35+14=
20-13=
14-6= 11-2= 2+11= 9+7=
48+19=
3+9=
5+6=
12+3=
16-4=
19-9=
17-2=
12+8=
18-9=
11+3=
2×5= 7
4×4= 5
2×8=
7
4×4= 2
54+11= 12
41-14=
3
14-6=
50-3=
21+19=
5+15=
18+1=
5+14=
16-2=
10+5=
20+6=
14+6=
3+13=
×8=
5
×6= 7
×8= 8
×9=
5
+58= 20
+15= 41
2+11=
(26)
26+25=
2+7=
7+13=
15-1=
9+7=
20-7=
19+1=
17-4=
7+11=
11+2=
×4=
5
×4= 9
×3= 3
×7=
9
-11= 27
-24= 91
(27)
1+9=
第 20 页
17-16=
11+7=
20-9=
11+4=
4+10=
3+11=
14+5=
10+7=
6+13=
19-7=
×7=
2
×5= 6
×4= 3
×9=
3
-7= 55
-11= 56
9+25=
12+6=
11+2=
19-7=
5+11=
2+9=
5+13=
14-4=
9+3=
3+9=
12+3=
×6=
×4=
×6=
×5=
-50=
+14=
17-2=
1
8+25= 16-7=
89+11= 12+7= 19+1=
5+9= 17-6=
3+9= 1+19= 2+7=
11+7= 5+6=
5+15= 7+13= 12+7=
20-9= 12+3=
18+1= 15-11= 11+4=
16-4=
14+10=
3+11=
2+8=
18-9=
9×4=
6
4×5= 2
3×6= 4
9×9=
2
11+33=
99-7=
12+7=
14
26+14= 67
9+5=
12+7=
3+9= 1
73+13= 20
16-4=
51
51-5=
91-9=
17-2=
12+6=
4+6=
×7= 4
×8=
7
×5=
×5= 3
27+17=
11+45=
-7= 13
-45=
97
8+25=
14+5=
+19=
11
-9= 12
-15= 5
5+14=
16-8=
10+5=
17-4=
7+11=
×6= 3
×3= 3
5×6=
7
×5= 4
40+13=
53+19=
(28)
-2= 4
+3= 17
16-7=
5+91=
+7= 55
+34=
18
+14= 22
第 21 页
9+7=
20-7=
19+1=
10+7=
6+13=
×7= 6
×3= 3
×7=
7
×9= 5
14+28=
12+58=
+24= 2
-9= 31
19+11=
17-6=
+16= 85
+21=
15
+11= 9
12+5=
11+5=
14+5=
9+3=
3+9=
×9=
×4=
×8=
×5=
45+13=
61-14=
+11=
-2=
4+28=
13+6=
+15=
-12=
+7=
4+10=
48-20= 37+9=
20-7= 11+5=
3+11= 17-12=
10+5= 13+4= 13+3=
13+6=
75+5= 85-27=
15+4=
17+3=
9×4= 6×7=
4×6= 3×7= 6×8=
1×5=
2×8= 7×3= 2×3=
3×4=
4×6= 4
7×9=
2
68-14= 48
20-13=
12+19=
13+57=
20-12= 18
12+4=
17-7=
17-13=
17-2=
13+3=
5
2+17=
15+54=
2×7=
5
6×3= 8
2×8=
5
3×6= 4
×5= 7
×5=
3
-27= 18
13-6=
20-10=
16+9=
+13= 5
18-15=
35+4=
10+3=
5+9=
+7=
35
6+11=
12+35=
×9=
4
×4= 4
×8= 5
×5=
6
×6= 7
×6= 4
-3=
42
23+17=
(29)
15+3=
35+14=
+12= 30
14+16=
17-5=
16+7=
11-4=
-7=
4
3+49=
29-13=
×4=
3
×9= 2
×4= 5
×6=
7
第 22 页
×7= 7
×9=
5
+40= 68
20-5=
1+15=
32+7=
+57= 15
28+12=
18-10=
19-5=
25+5=
+28=
76
21+19=
20-19=
×9=
9
×5= 5
×7= 2
×8=
9
×8=
×5=
-32=
29+11=
6+11=
7+19=
+6=
19-1=
20-8=
2+5=
12+35=
-14=
20-12=
3+14=
×9=
×3=
×6=
×7=
1
20-7=
30-18= 22+50= 17-2= 11-4=
12+25=
13+34= 13+16= 18-9= 15+24=
(30)
12+21= 15+4= 16+12= 100-20=
81+11=
12+70=
7+4=
13+5=
20-12=
12+48=
17-7=
71-3=
17-13=
13+3=
6×9=
6
5×6= 7
8×9= 8
6×6=
3
28+17=
33-9=
18-6=
14+37=
6+19=
10+13=
8-12=
30+4=
10+3=
5+9=
50+7=
×8= 3
×7= 3
×8=
7
×6= 6
82+11=
81+19=
20-10=
15+3=
50+4=
5+12=
13+6=
17-14=
6+7=
11-4=
9+11=
×3= 2
×9=
5
×3= 6
×8= 2
14+19=
15+50=
第 23 页
18-5=
15+15=
30+17=
3+50=
8+12=
18-10=
19-5=
5+50=
6+14=
×4= 3
×9=
9
×7= 5
×9= 4
65+11=
12+7=
4+80=
6+11=
1+19=
15+45=
5+70=
20-8=
20+5=
12+6=
12+7=
×7=
×9=
×5=
×4=
13+58=
31-8=
1
1
第 24 页