A bakery measured the mass of a whole cake as 0.870kg customer bought one slice and 0.1151 What is remaining without sli?

The mass of the whole cake is \(0.870\text{ kg}\). The customer bought one slice with a mass of \(0.115\text{ kg}\) To find the remaining mass of the cake without the slice, we subtract the mass of the slice from the mass of the whole cake:

$$ \text {Remaining mass} = \text{Mass of whole cake} - \text{ Mass of slice}$$

$$\text {Remaining mass} = 0.870 \text{ kg} - 0.115 \text{ kg} $$

$$ \boxed{\text {Remaining mass} = 0.755 \text{ kg} }$$