A. | B. |
C. | D. |
A.2516÷ (340÷5) | B.340÷5×2516 | C.(2516-340)÷5 |
A.2100÷3×31 | B.2100×3÷31 | C.2100× 3× 31 |
A.(800+860)÷5 | B.800÷5-860÷5 | C.860÷5-800÷5 |
A.550÷35+550÷15 | B.550÷(35+15) | C.550÷(35×15) | D.550÷35+15 |
A.1200-(80+120)×5 | B.(80+120)×3 |
C.1200÷(80+120) | D.(1200-400)÷(80+120) |
A.540 | B.550 | C.560 |
A.7 | B.8 | C.9 | D.10 |
A.1 | B.2 | C.3 | D.4 |
A.480棵 | B.88棵 | C.60棵 | D.3840棵 |