A.14 | B.4 | C.13 | D.15 |
A.17 | B.18 | C.19 |
A.11 | B.18 | C.16 |
A.6×5 | B.6×4 | C.6×4+5 |
A.18;8;2 |
B.17;9;2, |
C.18;9;2 |
A.25+13+30 | B.12+13+20 | C.25+15+18 |
A.4+5=9 | B.9-5=4 | C.9-4=5 | D.9+5=14 |
A.9-9=0 | B.9+9=18 | C.3-2=1 |
A.0 | B.4 | C.14 | D.16 |
A.6+6=12(个) | B.6+2=8(个) | C.12-6=6(个) | D.6-2=4(个) |