8.04+7.92= 15.96 15.96+9.76=25.73

The question10 * 30 = 30015 * 25 = 375 375+300 = 675 * is a multiplication sign, and the computer can't type it out.

Three questions

400*3= 1200 1200+40= 1240

Four questions

43. 15+50. 1 1=93.26 93.26—68.87=24.39

Five questions

860-265=595 595 divided by 5= 1 19.

Six questions

52×4=208 50×4=200 208+200=408 408— 15=393

Seven questions

Let the peach juice be X.

X+36 = 4X X = 12 12+36 = 48