1. (2020三上·惠山期中) 直接写出得数。

50×9 =        15×4 =        90÷2 =          99÷9 =

64÷2 =        360÷9 =       2×500 =         0+49 =

400÷8 =       0×9 =          600÷2 =        2×7+4 =

600×5 =       3×31 =         69÷3 =         360÷3÷2 =