100以内两位数加减法填括号（2023-09-22）

100以内两位数加减法填括号（2023-09-22）：39-( )=10 24+( )=99 ( )-23=56 28+( )=44 ( )-19=24 ( )+62=75 62-( )=10 32+( )=86 57-( )=13 ( )+10=26 ( )-80=11 ( )+46=72 ( )+27=52 75-( )=39 79-( )=57 57+( )=77 82+( )=92 48+( )=96 ( )+47=73 52-( )=39 ( )-49=37 ( )-30=54 21+( )=60 96-( )=11 80-( )=39 38+( )=50 ( )+29=54 17+( )=69 99-( )=23 ( )-28=41 28+( )=46 ( )-55=21 13+( )=77 ( )+11=72 23+( )=33 96-( )=59 88-( )=28 82+( )=94 ...