Practice!

Sample Problem

The following shows the thickness of 4 dictionaries. Fill in the blanks.

Dictionary

Thickness

A

5 in.

B

4 in.

C

3 in.

D

6 in.

(1) Dictionary is the thickest.

(2) Dictionary is the thinnest.

(3) Dictionary A is thicker than dictionary C by in.

(4) Dictionary D is thicker than dictionary C by in.

(5) Dictionary B is thicker than dictionary but thinner than dictionary and dictionary .

(6) The total thickness of the 4 dictionaries is in.

Solution

(1) Dictionary D is the thickest.

(2) Dictionary C is the thinnest.

(3) Difference between dictionary A and C: 5 - 3 = 2 inches

(4) Difference between dictionary D and C: 6 - 3 = 3 inches

(5) Dictionary B is thicker than dictionary C but thinner than dictionary A and D.

(6) Total length: 5 + 4 + 3 + 6 = 18 inches