文档介绍：5×5+12= 65+4×5= 3×5+45= 5×2+8=
9×5+27= 4×4+63= 81+4×3= 2×4+33=
7×4-14= 34-4×4= 6×5+25= 4×6+36=
28-2×6= 6×3+48= 72-6×6= 52+1×6=
39-2×3= 3×3+19= 66-1×3= 42-3×7=
7×4+22= 49-2×7= 5×7+15= 7×7+51=
6×7+16= 7×1-2= 2×2+8= 1×2-1=
9÷3= 6÷2= 15÷5= 18÷3=
45-4×8= 25+8×3= 5×8+39= 8×6-28=
8×2+66= 7×8-40= 54+1×8= 27+8×8=
9×5+36= 85-7×9= 2×9+42= 9×9+11=
72-3×9= 4×9+16= 54-1×9= 8×9+5=
6×9+14= 84-7×7= 45+3×5= 94-6×8=
23+7×8= 67-8×5= 40+6×6= 3×3+56=
4×5+6= 3×9+8= 9+5×5= 9+6×3=
12÷6= 18÷3= 49÷7= 81÷9=
9×9+4= 8+5×7= 7×5+9= 31+6×8=
26+9×5= 81-8×8= 64-3×7= 58+2×7=
2×6+8= 5×8+8= 6×4+4= 46-3×8=
6×4+28= 3×5+47= 9×8-64= 5×6-4=
88-8×8= 50-4×5= 2×8+35= 9×5-6=
1×5×3= 2×4×6= 3×4+29= 9×4-19=
6×5-21= 6×6+30= 6×7+65= 6×8-22=
6×9-23= 5×5-20= 50-5×4= 45-5×3=
52-6×4= 77-8×9= 88-5×9= 7×9-26=
25+5×3= 36+5×8= 79+5×2= 74-4×5=
25+6×3= 26-2×6= 45+3×4= 85-8×5=
96-9×6= 75-5×9= 49-6×1= 26+5×6=
5×6+23= 25+5×8= 54-5×3= 26+5×9=
8×5-25= 36-6×6= 4×9+56= 54+6×9=
49-5×8= 85-8×5= 79-7×3= 44-4×5=
27+8×6= 77-8×9= 98-9×8= 41-4×2=
4×9-10= 7×9-12= 99-8×9= 9×9-58=
88-7×9= 55-4×5= 56-5×8= 4×9-5=
55-8×3= 82-8×9= 72-5×7= 84-8×7=
7×6+56= 19+5×8= 4×5+52= 72-5×9=
8×9-70= 5×7+50= 8×2+60= 85-8×9=
8×8-54= 8×7-58= 7×6-21= 89-9×9=
26+5×8= 4×9-25= 8×2+19= 46-5×6=
25+4×6= 16+7×2= 7×8+46= 50-5×8=
59-4×6= 58+2×9= 85-8×8= 66-6×6=
9×6+32= 55+5×5= 8×4+65= 32+5×8=
8×9-7= 65-5×7= 9×7-60= 78-7×8=
51-5×6= 23+2×9= 3×9+18= 74-8×5=
45-8×5= 5×9-40= 6×8+35= 44-4×4=
53-5×3= 8×8-60= 79-7×9= 46-4×8=
49÷7= 35÷7= 28÷7= 56÷7=
75-7×5= 60-6×6= 80-8×8= 50-5×4=
72-7×6= 81-9×9= 16+5×7= 5×6+52=
67-5×8= 82-8×7= 76-7×3= 49-4×6=
64-5×4= 78-7×9= 99-9×8= 82-8×5=
62-5×8= 46+5×5= 57-7×5= 86-8×6=
46-5×5= 6×5+33= 9×7-6×5= 82-8×8=
94-9×4= 8×8-5×2= 29+2×9= 7×7-24=
20÷5= 12÷2+14= 15÷3+12= 15÷5+10=
8×3+51= 60-6×6= 18+7×6= 5×6-30=
5×9+54= 10+9×4= 7×6+46= 53-8×6=
8×6+45= 49-4×6= 82-8×4= 7×8+51=
4×5+22= 3×5+30= 2×5+65= 1×5+68=
4×4+52= 4×3+21= 4×2+51= 4×1+45=
3×3+91= 3×2+51= 3×7+15= 8×6+55=
71+5×5= 46+8×5= 7×8+80= 8×4+46