一年级下册口算练习题1000道
23+5= 37+1= 29-3= 38-3= 15-4=
18-2= 30+8= 43+1= 86+2= 70+3=
30-2= 72-2= 66-4= 39-2= 20-9=
53+5= 35+2= 39-4= 8+50= 20-1=
40+6= 62+7= 89-5= 63+3= 34-2=
50-4= 11+2= 53-3= 60+8= 80-7=
32+4= 26-5= 84+4= 35-10= 71+9=
18-4= 66+10= 83-3= 71+5= 60-5=
36+3= 58+30= 28-7= 87-10= 80-6=
11+9= 80-3= 95-4= 64+3= 98-4=
25+7= 62-2= 83+5= 83+10= 10+8=
56+20= 64+6= 65+3= 15-3= 30-3=
32+6= 29-7= 35+2= 7 3+4= 25+4=
43+5= 87+10= 3 9-3= 48-30= 95-40=
81-2= 60+8= 39+10= 76+10= 70+30=
48-9= 47-8= 52-4= 43-8= 68-9=
40-2= 27-9= 32-4= 41-2= 38-9=
50-8= 63-9= 37-8= 56-20= 88-9=
75-9= 92-3= 42-7= 71-6= 58-10=
47-8= 26-7= 52-3= 69-10= 63-5=
80-2= 36-9= 78-4= 65-8= 99-9=
72-2= 45-9= 86-8= 96-2= 24-9=
40-2= 46-9= 43-4= 18-2= 38-8=
35+5= 85+2= 59-4= 78+10= 82-5=
64+6= 32+7= 49-5= 63+3= 84-2=
60-4= 11+20= 45-3= 30+8= 60-7=
25+4= 36-5= 84+4= 52-3= 71+9=
88-4= 76+0= 93-3= 18+5= 70-5=
56+20= 64+6= 65+3= 15-3= 30-3=
32+6= 29-7= 35+2= 7 3+4= 25+4=
43+5= 87+10= 3 9-3= 48-30= 95-40=
81-2= 60+8= 39+10= 76+10= 70+30=
48-9= 47-8= 52-4= 43-8= 68-9=
40-2= 27-9= 32-4= 41-2= 38-9=
30-2= 72-2= 66-4= 39-2= 20-9=
53+5= 35+2= 39-4= 8+50= 20-1=
40+6= 62+7= 89-5= 63+3= 34-2=
50-4= 11+2= 53-3= 60+8= 80-7=
32+4= 26-5= 84+4= 35-10= 71+9=
12+6= 29-7= 33+2= 3+40= 15+4=
23+5= 37+1= 29-3= 38-3= 15-4=
18-2= 30+8= 43+1= 86+2= 70+3=
30-2= 72-2= 66-4= 39-2= 20-9=
53+5= 35+2= 39-4= 8+50= 20-1=
16+9= 5+18= 17+3= 36+6= 29+5= 87+9=
48+8= 35+8= 4+19= 7+26= 4+37= 29+4=
19+8= 29+7= 7+38= 9+18= 40+6= 35+30=
62+8= 75+5= 23+7= 26+8= 19+60= 32+8=
16+9= 24+6= 5+37= 44+7= 67+9= 50+8=
61+9= 85+4= 91+8= 82+5= 39+1= 46+7=
23+7= 37+4= 78+3= 27+6= 39+8= 68+5=
9+25= 85+6= 92+4= 86+2= 48+7= 39+9=
2+38= 56+8= 36+5= 35+6= 46+9= 9+25=
23+8= 46+6= 90+9= 84+7= 34+7= 56+3=
12+9= 93+3= 58+3= 75+7= 35+6= 86+8=
39+2= 27+4= 50+5= 34+9= 10+60= 9+50=
10+40= 61+10= 18+5= 74+6= 37+2= 26+5=
23+7= 47+4= 88+3= 47+6= 39+8= 68+5=
26+8= 19+6= 28+5= 53+6= 78+5= 37+9=
23+8= 89+6= 75+5= 86+6= 68+7= 87+9=
26+9= 25+6= 50+37= 49+7= 87+9= 50+8=
61+9= 85+4= 91+8= 82+5= 39+10= 46+7=
73+7= 37+4= 78+3= 27+60= 39+8= 68+5=
9+25= 35+6= 2+40= 86+2= 48+7= 39+10=
16+9= 5+18= 17+3= 36+6= 29+5= 87+9=
48+8= 35+8= 4+19= 7+26= 4+37= 29+4=
39+8= 26+7= 7+38= 6+18= 40+6= 35+30=
32+8= 25+5= 13+7= 86+8= 19+60= 32+8=
16+9= 34+6= 5+37= 14+7= 37+9= 57+8=
39+2= 27+4= 50+5= 54+9= 70+60= 39+50=
10+40= 6+10= 18+50= 74+6= 37+2= 26+50=
23+70= 47+4= 88+3= 47+6= 99+1= 68+5=
26+8= 19+60= 48+50= 23+6= 78+50= 87+9=
83+8= 19+6= 75+5= 36+6= 18+7= 47+9=
83+70= 67+40= 88+3= 47+6= 39+8= 68+5= 36+8= 19+6= 28+50= 53+6= 78+5= 17+9=
11+9= 80-3= 95-4= 64+3= 98-4= 25+7=
62-2= 83+5= 83+10= 10+8= 56+20= 64+6=
65+3= 15-3= 30-3= 32+6= 29-7= 35+6=
73+4= 25+4= 43+5= 87+10= 3 9-3= 48-30=
95-40= 81-2= 60+8= 39+10= 76+10= 70+30=
48-9= 47-8= 52-4= 43-8= 68-9= 40-2=
27-9= 32-4= 41-2= 38-9= 50-8= 63-9=
37-8= 56-20= 88-9= 75-9= 92-3= 42-7=
71-6= 58-10= 36-9= 78-4= 65-8= 99-9=
47-8= 26-7= 52-3= 69-10= 63-5= 80-2=
72-2= 45-9= 86-8= 96-2= 24-9=
40-2= 46-9= 43-4= 18-2= 38-8=
35+5= 85+2= 59-4= 78+10= 82-5=
64+6= 32+7= 49-5= 63+3= 84-2=
60-4= 11+20= 45-3= 30+8= 60-7=
25+4= 36-5= 84+4= 52-3= 71+9=
88-4= 76+0= 93-3= 18+5= 70-5=
56+20= 64+6= 65+3= 15-3= 30-3=
12+6= 29-7= 33+2= 3+40= 15+4=
23+5= 37+1= 29-3= 38-3= 15-4=
18-2= 30+8= 43+1= 86+2= 70+3=
30-2= 72-2= 66-4= 39-2= 20-9=
53+5= 35+2= 39-4= 8+50= 20-1=
40+6= 62+7= 89-5= 63+3= 34-2=
50-4= 11+2= 53-3= 60+8= 80-7=
32+4= 26-5= 84+4= 35-10= 71+9=
18-4= 66+10= 83-3= 71+5= 60-5=
6+40= 45-5= 6+56= 30+9= 29+6=
58-50= 37+5= 23-20= 67-60= 40+9=
63-30= 42-2= 4+90= 20+67= 56+10=
23-6= 20+80= 51+8= 37-7= 57+30=
72-60= 68-8= 90-70= 7+50= 20+23=
50+28= 52-50= 18+30= 86-40= 40+47=
58-3= 50+38= 5+43= 68-5= 25+40=
96-90= 48+8= 58-8= 55-3= 52+30=
47-7= 66-20= 70-7= 77-9= 32+3=
90-40= 61+5= 60+30= 55-8= 7+33=
86-20= 86-40= 49+3= 56+3= 22+50=
25+20= 7+42= 17+50= 30+20= 100-30=
6+30= 88-60= 7+40= 94-6= 38+4=
100-70= 34+4= 74-70= 28+6= 7+64=
11+9= 80-3= 95-4= 64+3= 98-4=
25+7= 62-2= 83+5= 83+10= 10+8=
56+20= 64+6= 65+3= 15-3= 30-3=
32+6= 29-7= 35+2= 7 3+4= 25+4=
43+5= 87+10= 3 9-3= 48-30= 95-40=
81-2= 60+8= 39+10= 76+10= 70+30=
48-9= 47-8= 52-4= 43-8= 68-9=
40-2= 27-9= 32-4= 41-2= 38-9=
50-8= 63-9= 37-8= 56-20= 88-9=
75-9= 92-3= 42-7= 71-6= 58-10=
47-8= 26-7= 52-3= 69-10= 63-5=
80-2= 36-9= 78-4= 65-8= 99-9=
72-2= 45-9= 86-8= 96-2= 24-9=
40-2= 46-9= 43-4= 18-2= 38-8=
35+5= 85+2= 59-4= 78+10= 82-5=
64+6= 32+7= 49-5= 63+3= 84-2=
60-4= 11+20= 45-3= 30+8= 60-7=
25+4= 36-5= 84+4= 52-3= 71+9=
88-4= 76+0= 93-3= 18+5= 70-5=
56+20= 64+6= 65+3= 15-3= 30-3=
12+6= 29-7= 33+2= 3+40= 15+4=
23+5= 37+1= 29-3= 38-3= 15-4=
18-2= 30+8= 43+1= 86+2= 70+3=
30-2= 72-2= 66-4= 39-2= 20-9=
53+5= 35+2= 39-4= 8+50= 20-1=
40+6= 62+7= 89-5= 63+3= 34-2=
50-4= 11+2= 53-3= 60+8= 80-7=
32+4= 26-5= 84+4= 35-10= 71+9=
18-4= 66+10= 83-3= 71+5= 60-5=
36+3= 58+30= 28-7= 87-10= 80-6=
32+6= 29-7= 35+2= 7 3+4= 25+4=
43+5= 87+10= 3 9-3= 48-30= 95-40=
81-2= 60+8= 39+10= 76+10= 70+30=
48-9= 47-8= 52-4= 43-8= 68-9=
40-2= 27-9= 32-4= 41-2= 38-9=
30-2= 72-2= 66-4= 39-2= 20-9=
53+5= 35+2= 39-4= 8+50= 20-1=
40+6= 62+7= 89-5= 63+3= 34-2=
50-4= 11+2= 53-3= 60+8= 80-7=
32+4= 26-5= 84+4= 35-10= 71+9=
12+6= 29-7= 33+2= 3+40= 15+4=
23+5= 37+1= 29-3= 38-3= 15-4=
18-2= 30+8= 43+1= 86+2= 70+3=
30-2= 72-2= 66-4= 39-2= 20-9=
53+5= 35+2= 39-4= 8+50= 20-1=
16+9= 5+18= 17+3= 36+6= 29+5= 87+9=
48+8= 35+8= 4+19= 7+26= 4+37= 29+4=
19+8= 29+7= 7+38= 9+18= 40+6= 35+30=
62+8= 75+5= 23+7= 26+8= 19+60= 32+8=
16+9= 24+6= 5+37= 44+7= 67+9= 50+8=
61+9= 85+4= 91+8= 82+5= 39+1= 46+7=
23+7= 37+4= 78+3= 27+6= 39+8= 68+5=
9+25= 85+6= 92+4= 86+2= 48+7= 39+9=
2+38= 56+8= 36+5= 35+6= 46+9= 9+25=
23+8= 46+6= 90+9= 84+7= 34+7= 56+3=
12+9= 93+3= 58+3= 75+7= 35+6= 86+8=
39+2= 27+4= 50+5= 34+9= 10+60= 9+50=
10+40= 61+10= 18+5= 74+6= 37+2= 26+5=
23+7= 47+4= 88+3= 47+6= 39+8= 68+5=
26+8= 19+6= 28+5= 53+6= 78+5= 37+9=
23+8= 89+6= 75+5= 86+6= 68+7= 87+9=
26+9= 25+6= 50+37= 49+7= 87+9= 50+8=
61+9= 85+4= 91+8= 82+5= 39+10= 46+7=
73+7= 37+4= 78+3= 27+60= 39+8= 68+5=
9+25= 35+6= 2+40= 86+2= 48+7= 39+10=
16+9= 5+18= 17+3= 36+6= 29+5= 87+9=
48+8= 35+8= 4+19= 7+26= 4+37= 29+4=
39+8= 26+7= 7+38= 6+18= 40+6= 35+30=
32+8= 25+5= 13+7= 86+8= 19+60= 32+8=
16+9= 34+6= 5+37= 14+7= 37+9= 57+8=
39+2= 27+4= 50+5= 54+9= 70+60= 39+50=
10+40= 6+10= 18+50= 74+6= 37+2= 26+50=
23+70= 47+4= 88+3= 47+6= 99+1= 68+5=
26+8= 19+60= 48+50= 23+6= 78+50= 87+9=
83+8= 19+6= 75+5= 36+6= 18+7= 47+9=
83+70= 67+40= 88+3= 47+6= 39+8= 68+5=
36+8= 19+6= 28+50= 53+6= 78+5= 17+9=
45+30= 45+3= 5+41= 50+41= 6+32=
52+6= 40+47= 62+4= 27+40= 5+23=
71+5= 45+30= 69+1= 6+33= 18+70=
44+3= 5+32= 25+4= 20+35= 4+75=
3+95= 30+65= 53+20= 85+3= 4+52=
30+65= 6+22= 16+3= 40+58= 56-30=
56-3= 89-40= 89-4= 75-30= 56-3=
29-4= 77-7= 29-20= 56-4= 63-50=
38-4= 98-3= 96-30= 39-6= 36-30=
25-4= 78-40= 80-30= 79-60= 5+34=
49-7= 26-3= 59-3= 67-3= 50+34=
99-50= 30-1= 55-2= 27-5= 58-30=
45-20= 76-40= 46-30= 46+30= 58+30=
4+74= 51+7= 38+40= 93-80= 36-3=
63-30= 95-5= 86+10= 2+82= 98-60=
69+0= 73-40= 100-30= 59-4= 90-20=
95-4= 70+28= 6+98= 19-6= 30+20=
20+80= 65+30= 92-50= 13+5= 40+40=
85-20+5= 12+5+50= 80-50-30= 12+12-12=
65-5-50= 80-20+6= 6-4+80= 5-3+70=
70-30+5= 60+4+20= 75-70+9= 80-20+15=
6+32-30= 46-6+60= 78-8+29= 30+50+12=
25-20+71= 54+3-5= 46+6+20= 90-50+42=
32-2+58= 75-40-3= 22-20+50= 36+20-20=
59-30+30= 28-8+25= 90-10-60= 30+70-50=
22+4+40= 36+3+10= 56-2+10= 85+10-2=
二、在括号里填上合适的数:
68-( )=63 63+( )=68 45+( )=65
( )+20=65 65-( )=45 65-( )=20
( )+16=56 56-( )=16 78-( )=76
23+( )=29 90-( )=89 ( )+5=26
( )-55=3 ( )+5=18 49-( )=29
6+( )=48 ( )-9=90 ( )-20=28
28-( )=8 65-( )=35 26+( )=56
( )+42=49 85-( )=5 ( )+3=37
25-( )=21 38-( )=31 43+( )=47
69-( )=39 86-( )=80
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