①2.95×3.8=
②*1.55÷3.9≈
甲商店:买一大瓶,送一罐;乙商店:一律九折;丙商店;满30元即享受八折优惠。问:
36+48= 9.2-4.6= 560÷10= 12.5÷0.5=
- = 56× = 0.32= 2021×0.125×8=