46+20=
7+38=
63+9=
9+43=
27+7+60=
55+6+30=
45+4=
45+40=
6+32=
60+32=
26+3=
26+30=
72+2=
72+20=
25+20 37+9 8+29 46+5
46 51 45 37
⑴20+8+1 40 ⑵60+20 52
46-4-2 29 40+7 5
28-(5+3) 30 45-40 80
37-(11-4) 20 2+50 47