1. the complete set of mathematical oral calculation problems in the first volume of the second grade of primary school.
4 1-39+7= 53+46-82= 79-79+ 18= 77-3+ 14= 65-62+ 13= 69+4-65= 17+35-26= 42+39- 16=
58+ 15-63= 34+49-72= 4 1+25-46= 73-27+6=
63-64+4= 50-0+5= 54-72+3 1= 78+ 10- 13=
28+54-34= 58-4 1+28= 44+3-28= 29+20-4=
64- 14+ 1 1= 72-69+ 18= 54-27+38= 63- 1 1+26=
85-44+ 1 1= 60-28+4= 36-44+32= 55-43+42=
89+2-4 1= 47+6-8= 7+ 10- 13= 70+ 17-56=
68+26- 15= 43+6-20= 26-27+ 1 1= 42+35-69=
52+44-53= 27-33+30= 25+72-6 1= 52- 16+5=
67+ 17-64= 55+ 18-68= 94-93-0= 95-34+4=
97-5-7 1= 74-30-23= 56- 19- 18= 98-89+44=
32-0+39= 8- 1-2= 22+30-22= 14+54+4=
46-0+35= 46+49+2= 93-87+79= 25+8+27=
23- 14+80= 67- 18-20= 2 1- 10-4= 32+58+4=
15-8+7 1= 78+3+ 13= 3-0+55= 30+22+27=
34-20+80= 34+65- 16= 33- 17+83= 98-32-38=
9 1-65+3 1= 13-9-2= 8 1- 1 1+23= 3 1+45+9=
28+ 17+40= 74+3-28= 3 1+66+ 1= 87- 1-8=
50+ 12-57= 89+2+ 1= 70+ 15+ 10= 1 1-4-6=
56+39+0= 85-43-34= 5+ 18+73= 83+ 10-67=
78+ 15+ 1= 37+48+8= 1+78+ 10= 46+0-0=
62-3 1-28= 65-47+59= 66+2+ 12= 46-26+54=
2+77-27= 58+22-40= 43+ 12-48= 86+ 10- 1 1=
60-3 1+7= 65+ 19-28= 54-39+3= 73+8-70=
53-48+23= 25- 10+5= 42+0- 17= 6 1+27-67=
60+27- 12= 26+ 1 1-6= 65+23-54= 24+6 1-43=
29+25-38= 50-37+ 10= 8 1+2-74= 48-8+7=
64-44+4= 42+23-40= 89+9-88= 65-52+32=
70+ 1 1-9= 14+9- 16= 39-55+3 1= 12-5+65=
30-62+38= 54+ 16-47= 32-69+49= 89+8-7 1=
24-37+22= 0+47-36= 28-27+23= 49-50+37=
56+30-60= 2+69-48= 14-8+25= 72-33+9=
60-37+ 12= 58+25-38= 74-62+9= 65-46+ 1 1=
57-55+0= 87+ 1 1-43= 29+37-36= 86+ 13-43=
6-0+32= 14-27+24= 26+ 13-28= 89-4+0=
5 1-6+5= 15- 13+7= 7+62-24= 86-22+8=
17- 16+30= 72-3+ 19= 2 1+ 15- 14= 30-49+3 1=
17+56-45= 53+ 1 1-37= 29-20+28= 8 1+4-57=
20+46-56= 67+8-5= 57- 14+9= 84-82+8=
34-4+27= 17-78+7 1= 30+7- 1= 24-89+66=
60-56+39= 65-46+32= 62- 1 1+ 13= 17+8- 15=
76- 19+ 17= 44+46-42= 58-52+28= 64+9-20=
2. The second grade of primary school, the first volume of mathematical oral calculation problems.
26-3 1+2 1= 4-0+88= 43-54+36= 38-2 1+2= 48-53+49= 65- 13+3= 58-22+0= 73-20+ 13=
57+42- 18= 78+ 1 1- 19= 83-84+2= 64+ 10-70=
67-38+ 13= 7 1-58+ 15= 49-37+32= 30+44-66=
15+55-69= 3-79+77= 16+37- 16= 50-54+46=
2+97-8 1= 74+ 19-84= 24+58-54= 35+49- 1 1=
15+4-8= 22- 16+ 12= 8 1+5- 15= 65-37+29=
28-42+40= 56-35+29= 38-37+20= 4+87-86=
22+64-0= 34+47-52= 56+33-48= 3 1+24-26=
17+53-24= 19- 13+ 1= 3 1+52-43= 76-46+4=
85-48+6= 46+46-55= 84- 17+ 12= 52-32+40=
29+38-36= 75+2-38= 15-4+33= 77-9+22=
26+35-56= 45-84+4 1= 23- 17-5= 19- 12+45=
38+32+ 14= 66+29-4= 49-44+36= 77+ 12+ 1=
73+ 17-42= 30-25-3= 18+ 1+ 1= 84-3+ 17=
55-33-9= 52+ 17- 10= 9 1-46-4 1= 52-23-2 1=
59+38-56= 72-28+ 1= 68+28+2= 93-25+30=
33-9-8= 10+8 1-23= 25+66+7= 22+29-23=
55- 18- 13= 4-0+75= 7-6-0= 34-30+ 19=
73+3-0= 6 1+3+4= 87+3+8= 62+8+5=
6-0+ 17= 68- 19-7= 53+25+ 10= 38-3- 1 1=
58- 1 1+44= 13-9-2= 73+0+22= 5 1-26-22=
48+ 10+ 10= 1-0-0= 76-39-26= 32+53+6=
1 1-9-0= 77+22-65= 69-56- 1= 4 1- 12+25=
88+4+3= 4-2+36= 37+7-6= 7+34+25=
68+4-40= 42- 18+ 10= 2 1-0+64= 47-2 1+ 16=
3. The second grade of primary school, the first volume of mathematical oral calculation problems.
27÷9= 9×9= 6÷2= 4×2+6= 36÷4= 5÷5= 24÷3= 2×7+2=
6+4 1= 56÷7= 16÷2= 2×3+2=
42÷6= 18÷2= 5× 1= 1× 1+2=
24÷6= 45-39= 56÷7= 5×4+7=
36÷6= 8÷4= 4×5= 5×3+9=
27÷3= 36÷9= 56÷8= 5× 1+9=
15÷3= 20÷4= 24÷44×4+5=
45÷5= 6×6= 12÷6= 3×6+4=
45+5= 1÷ 1= 72÷8= 4×9÷6=
24÷8= 14÷7= 6÷ 1= 3×6÷2=
9÷9= 4×2= 6×2= 3×6÷3=
10÷5= 70–52= 5×5= 3×4÷2=
49÷7= 10÷2= 54÷6= 2×6÷6=
24÷4= 15÷5= 72÷9= 6×2+8=
24÷8= 36÷6= 48÷6= 2×8+4=
54÷6= 7×7= 5× 1= 2×7+8=
1×6= 56÷8= 2 1÷7= 4×5+5=
28÷7= 7×3= 35÷7= 6×5+3=
2×3= 42÷7= 45÷9= 5×4+7=
30÷6= 49÷7= 9×2= 6×3+3=
56÷7= 64÷8= 24÷6= 3×4+ 10=
63÷7= 8×5= 4×3= 1× 1+ 1=
2×6= 64÷8= 3×3= 2×2+2=
5×4= 3×2= 23+ 17= 3×4+8=