乘加乘减的口算练习(二年级) 6×7-19= 6×9-19= 4+35= 1×4-2= 8×8-23= 4×8+44= 8-45= 9×4+49= 6+49= 4×2+24= 6×4+27= 9×3+40= 6×4+25= 2×8-6= 6×1+25= 9×4+49= 5×1-4= 4×7-2= 4×5-10= 9×9-17= 5×9×2-4= 4×8-10= 9×7×8×9-29= 7×8-49= 1×5+24= 3×4+49= 3×9+36= 6×2+28= 5+32= 3×4+44= 7×3+39= 4×2+43= 1×3+4= 3+23= 5×6-21= 1+34= 3×6-10= 9×9-25= 3×5+42= 9×5-19= 4×4+40= 9×2+22= 7×5+41= 4×5+30= ×5+9= 5×2-1= 2×7-0= 4×4-7=2×8×8-5=3×7-3=9×1-8=7×9×1 本文来源:https://www.wddqw.com/doc/6965b2d2e53a580216fcfec9.html