3rd Grade Scaled Graphs and Line Plots Quiz: 10 Questions with Explanations

A 7 shellsB 24 shellsC 42 shellsD 21 shells

Ana has 3 whole stars and 1 half star: 18 + 3 = 21. Counting each symbol as 1 gives 7.

A 40B 50C 4D 45

The Blue bar stops halfway between 40 and 50, so it shows 45.

A \(3\frac{1}{2}\) inchesB \(3\frac{3}{4}\) inchesC \(3\frac{1}{4}\) inchesD \(4\frac{1}{4}\) inches

The end is 1 short mark past 3, which is one fourth. Counting 2 marks gives 3 1/2.

A 6B 3C 4D 7

Count the Xs above 1 1/2. There are 3.

A 61B 65C 64D 75

Halfway between 60 and 70 is 60 + 5 = 65.

A \(3\frac{1}{2}\) starsB 35 starsC 3 starsD 4 stars

35 is 3 tens and 5 more, and 5 is half of 10. So draw 3 whole stars and 1 half star.

A 3 booksB 12 booksC 9 booksD 36 books

Ava has 24 and Ben has 12. 24 – 12 = 12. Subtracting the star counts gives 3.

A 7 plantsB 4 plantsC 3 plantsD 19 plants

Add the Xs: 2 + 4 + 1 = 7. A single stack is not the total.

A 2 marksB 6 marksC 8 marksD 4 marks

Each inch has 4 fourths, and 2 x 4 = 8.

A 15B 55C 25D 5

Subtract: 35 – 20 = 15. Adding would give 55.