1 50 yuan for a ***40, with 33 yuan.

1 50 yuan How many coins are there?

Hypothetical method:

5 jiao =0.5 yuan (first conversion unit)

Assume that they are all 1 yuan.

1x40=40 (yuan)

40-33=7 (yuan)

1-0.5=0.5 (yuan)

5 Angle: 7÷0.5= 14 (pieces)

1 yuan: 40- 14=26 pieces.

Suppose it's all five angles.

0.5x40=20 (yuan)

33-20= 13 (yuan)

1-0.5=0.5 (yuan)

1 Yuan: 13÷0.5=26 (pieces)

5 Angle: 40-26= 14 (piece)