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=
□○□=□( )
口诀:
59-6=
27+3=
20+55=
5+23=
70-3=
42+8=
13+20=
59-50=
2×3=
4×3=
5×4=
0×4=
3×1=
2×5=
4×4=
4×5=
3×2=
5×5=
2×2=
5×2=
2×4=
5×3=
3×3=
1×5=
52+20= 62-4= 56 -30= 27+5=
76-30= 9+25 = 46-8= 90+4=
31+5= 6+30= 60-1= 64-50=
79-70= 33+27= 55-6= 28+9=
2×5= 5×5= 5×3= 5×4=
70+20-35= 62-2+40= 55-(16+6)= 26+1×5=