4th Grade Line Plots with Fractions Quiz: 10 Questions with Explanations

A 3B 6C 4D 9

Count every dot: 3 + 2 + 4 = 9. The 3 counts only the number marks on the line.

A 1/2 inB 3/4 inC 4 inD 1 in

The tallest stack has 4 dots at 1 inch. The number 4 is how many dots, not a length.

A \(\frac{1}{2}\text{ in}\)B \(\frac{1}{4}\text{ in}\)C \(1\frac{1}{2}\text{ in}\)D \(\frac{3}{4}\text{ in}\)

The longest is 1 inch and the shortest is 1/2 inch. Subtract: 1 – 1/2 = 1/2 inch.

A \(\frac{3}{12}\text{ in}\)B \(\frac{3}{4}\text{ in}\)C \(\frac{1}{4}\text{ in}\)D 3 in

Add 1/4 + 1/4 + 1/4 = 3/4. Adding the denominators too (3/12) is a common mistake.

A 1 ftB 3 ftC 2 ftD 4 ft

Two halves make 1 foot, and two 1-foot pieces make 2 feet. 1 + 2 = 3 feet.

A 6B 4C 3D 7

Shorter than 3/8 inch means 1/8 inch (1 dot) and 1/4 inch (2 dots): 1 + 2 = 3. The 7 is all the seeds.

A \(\frac{1}{8}\text{ in}\)B \(\frac{5}{8}\text{ in}\)C \(\frac{3}{8}\text{ in}\)D \(\frac{1}{4}\text{ in}\)

Longest 1/2 = 4/8, shortest 1/8. Subtract: 4/8 – 1/8 = 3/8 inch.

A 6 ftB 5 1/2 ftC 4 1/2 ftD 1 1/2 ft

Add 1 1/2 four times: 3, then 4 1/2, then 6 feet. Adding only 1 + 1/2 once is not enough.

A \(\frac{3}{4}\text{ in}\)B \(\frac{1}{3}\text{ in}\)C \(\frac{5}{8}\text{ in}\)D 1 in

Fourths go 1/4, 2/4 (which is 1/2), 3/4, 4/4. The next mark after 1/2 is 3/4.

A 1B 3C 2D 5

1/4 appears three times in the list, so there are 3 dots above 1/4. The total number of dots is 5.