A.100×76+1 | B.100×76+100 | C.100×76+76 |
A.986-300-3 | B.986-300+3 |
C.986-200+3 | D.986-(300+3) |
A.340×3+260 | B.340×(3+260) |
C.340+260×3 | D.(260+80)×3 |
A.120 | B.90 | C.80 |
A.360÷6×4 | B.360÷3÷8 | C.360÷6÷4 |
A.63×100+1 |
B.63×100-1 |
C.63×100+63 |
A.105×26+26 | B.105×28-1 | C.105×28-105 |
A.1364 | B.1584 | C.1600 |
A.21 | B.20 | C.19 | D.18 |
A.(150+120)×8 | B.150×8+120×8 | C.(150-120)×8 |