Question 16
The picture graph shows the numbers of pencils Amelia, Stacy, Sophia and Olivia have. They have 85 pencils altogether. How many more pencils does Sophia have than Stacy? Every bag symbol represents the same number of pencils.
Answer format: one whole number, without units. Leading zeros are optional; the printed answer sheet uses four digits.
Answer format: one whole number, without units. Leading zeros are optional; the printed answer sheet uses four digits.