A.30 | B.62 | C.18 | D.61 |
A.20 | B.37 | C.45 | D.44 |
A.20 | B.37 | C.73 | D.48 |
A.164-4×6÷4 | B.(164-4×6)÷4 | C.(164-4)×6÷4 |
A.56 | B.102 | C.2575 | D.3588 |
A.27 | B.36 | C.54 | D.63 |
A.27 | B.36 | C.54 | D.72 |
A.104000 | B.182000 | C.128000 | D.232000 |
A.240÷(6×2)=240÷6÷2 | B.56×98=56×100-56×2 |
C.1009-74+26=1009-(74+26) ![]() | D.20×(5×7)=(20×5)×7 |
A.6 ![]() | B.7 ![]() | C.8 ![]() | D.9 |