计算:0.6×9.8-2/5×50%=? 9/16×2/5+3/5÷16/9=?
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/05 23:45:48
![计算:0.6×9.8-2/5×50%=? 9/16×2/5+3/5÷16/9=?](/uploads/image/z/9319152-48-2.jpg?t=%E8%AE%A1%E7%AE%97%EF%BC%9A0.6%C3%979.8-2%2F5%C3%9750%25%3D%3F+9%2F16%C3%972%2F5%2B3%2F5%C3%B716%2F9%3D%3F)
计算:0.6×9.8-2/5×50%=? 9/16×2/5+3/5÷16/9=?
计算:0.6×9.8-2/5×50%=? 9/16×2/5+3/5÷16/9=?
计算:0.6×9.8-2/5×50%=? 9/16×2/5+3/5÷16/9=?
0.6X9.8-2/5X50%
=0.6X(10-0.2)-1/5
=6-0.12-0.2
=6-0.32
=5.68
9/16X2/5+3/5÷16/9
=9/16X2/5+3/5X9/16
=9/16X(2/5+3/5)
=9/16X1
=9/16
0.6×9.8-2/5×50%=0.6×9.8-0.4×0.5=5.68
9/16×2/5+3/5÷16/9=9/16×2/5+3/5×9/16=(2/5+3/5)×9/16=9/16