Question

直接写出得数。
30+27=                           7+80=                              20+50=                       52-20+30=     
42-6=                              40-6=                              54- 40=                       8+24+5=     
23+8=                             60-10=                             41- 40=                       45-7-6= 

Answer 1

57；87；70；62；36；34；14；37；31；50；1；32