珠心算练习题200题( 二 )


9-5-1=      7-5+2=         8-3-5=            5+2-1=             99-55-33=
7-2-5=      1+5-1=         6-1-5=            3-1+5=             44-22+55=
5+4-3=      3-2+5=         9-5+1=          9-5-3=            66-55+22=
5+3-2=      6-5+2=         1+5-1=          4+5-1=           88-22-55=
8-5-2=      2-1+5=         1+5-1=           4-2+5=            33+55-22=
珠心算练习题 三:
6--9的直加直减练习
4-2+7=      3+5-6=         2+7-8=          4+5-8+6=         44-22+77=
1+5-6=      5+3-7=         9-8+1=          7-6+5+3=         22+55-66=
6-5+2=      7-6+5=         8-7+6=          3+5-7+2=         11+77-33=
1+8-7=      3-2+6=         4+5-7=          9-1-7+6=         88-77+11=
7+2-8=      8-6+1=         2+5-7=          6+3-1-5=         44-33+88=
1+8-8=      2+6-5=         3+6-7=          7-7+3+5=         99-77+22=
5+1-5=      8-7+6=         4+5-8=          4-3+8-7=         66-55+88=
1+8-6=      5+4-8=         9-6-2=          6-5+7-8=         22+77-66=