脱式计算.1320÷6×40            1080-720÷40 420×(105-88) 8820÷70÷21

脱式计算.1320÷6×40            1080-720÷40 420×(105-88) 8820÷70÷21.
2024-11-15 21:27:45
推荐回答(1个)
回答1:

(1)1320÷6×40
=220×40
=8800;

(2)1080-720÷40
=1080-18
=1062;

(3)420×(105-88)
=420×17
=7140;

(4)8820÷70÷21
=126÷21
=6.