Ritaj Abdulrahman Rihan was practising the subtraction of four-digit numbers during a maths lesson in Beit Lahia, northern Gaza.
Her teacher had given the pupils an exercise and asked them to solve it.
Ritaj wrote down the questions, but the space left for her answers remained blank - stained instead with her blood.
The nine-year-old Palestinian girl was shot in the head by Israeli forces stationed nearby while attending class alongside around 40 other pupils at Abu Ubaida Bin al-Jarrah School on Thursday.
She was rushed to the hospital but was pronounced dead before her parents could say goodbye.
