3×7= 4×6= 23+27= 9+76= 2×3=
6×6= 45+21= 67+7= 40-13= 25-16=
8×2= 81-18= 6×9= 30-2= 18+37=
2×5+9= 4×7+7= 48-18-12= 7×8-20= 5×7-5=
30+49= 6×5= 99-4= 23+8=
4×3= 7+55= 6×2= 4×6=
5×( )=20 ( )×3=18
7×6=
32+45=
5×3=
4×3+4=
45+20=
9×9=
30+50=
93﹣30﹣12=
98﹣8=
9×5=
87﹣25=
8×6﹣6=
5×9+46= 48÷8÷2= 49÷7+15=
2×9÷6= 64÷8-8= 6×6+78=
8×7-39= 3×1×8= 56÷8×9=
5×7= 8×4= 9×7=
4×7= 56÷8= 35÷7=
3×7=
4÷4=
0×1=
0÷8=
18÷2=
3×8=
7×6=
54÷9=
8×4+9=
9×6-30=
1×9+9=
0×6+7=
3×3×2=
36÷9÷4=
3×4÷6=
56÷8×5=
78-29大约是 37+24大约是
26+57大约是 83-47大约是
19+55大约是 24+46大约是
38+33大约是 72+29大约是
52-38大约是 61-49大约是
×9<35 7×<37 ×6<40 ×5<41