文档介绍：二年级口算练****题3136-7×7=      77-81÷9=      92-37-41=      31+9×8=14+5×7=      3×7+20=      210÷7÷3=      16+76-54=98-39+47=      12÷3÷1=      49+25+81=      27+91-42=113-5×3=      50÷5-4=      68+1×9=      83-8-9=72÷8×6=      32+96-33=      2×7-0=      89+93-26=66+14+79=      22-21+43=      4×14÷7=      58-6-8=66-9×4=      1×6-4=      42÷7-1=      20+21÷7=6÷2+20=      42+4×6=      192÷6÷8=      12-8+59=28+0×2=      9×9×6=      65-3×9=      89-16-5=9×0-0=      3×5+33=      37+15÷3=      69-56+39=35÷5-2=      1×9÷9=      19-1×5=      61-41-18=21+7×8=      1×30÷6=      36+0×5=      72÷6÷4=30+69+53=      47-16-22=      196÷4÷7=      99+35+31=51+80+84=      24+3×8=      53+93-13=      20+46+62=15-12+68=      24-1×8=      79-46-27=      41-4×7=8×4+41=      3×1+67=      126-5×6=      32÷8×8=7÷1+29=      97+52-57=      5×3-6=      80÷5÷4=58+0×1=