Each problem draws its own single-series bar chart and asks for the value of one named bar - no adding, no subtracting, just finding the right bar and reading the scale. It is the skill underneath every other bar-graph question, and the one worth practising on its own before mixing in the arithmetic our full bar graph worksheet adds.
The scale is smaller here than on the mixed page - a top gridline of 10 rather than 20 - so the numbers stay simple while the reading itself is what is new. Every bar still ends exactly on a labelled gridline, so the answer is never a judgement call between two lines.
Find the bar for the category named in the question, trace the top of it straight across to the scale on the left, and read the number next to the gridline it lines up with.
Reading a chart is its own skill, separate from doing arithmetic with what it shows. This page isolates it; our full bar graph worksheet mixes in the totals, differences and "which is largest" questions once reading is solid.
A top gridline of 10 keeps every value small and every gridline easy to count up to, so a student who is still learning to read a chart is not also fighting with big numbers.
Second grade (2.MD.D.10) is the standard introduction to reading a single-series bar graph, ahead of the comparison and total questions third grade adds.