| What single social advance subtracted more from the sum of human misery than the extirpation of slavery in the nineteenth century? |
| On standard problems, solutions were coded as covert when the child simply added or subtracted the correct number of chips in a single operation. |
| All dead nestlings found within or outside the nest box were subtracted from brood size at day 13 to determine the actual number fledged. |
| The fluorescence is not visible because the background was subtracted in each spectrum. |
| I didn't have much change on me when I subtracted my bus fare, but I emptied out all I could spare for him. |
| The integrated density of a background box was subtracted from that of a box encompassing each sample. |
