Measuring Lengths (Nonstandard & Standard Units) — Answer Key
Part A: Trace the Words
Trace each word carefully by following the dotted lines.
1. long
2. short
3. inch
4. ruler
5. unit
6. cube
Part B: Fill in the Blank
Write the missing word or number on each line.
1. We measure how long something is to find its length.
Length tells us how far an object stretches, so finding how long something is means measuring its length.
2. You can line up cubes to measure a book.
Cubes all have the same size, so snapping them in a line beside the book lets us count how long the book is.
3. A foot is longer than an inch.
One foot equals 12 inches, so a foot is much longer than just one inch.
4. When measuring, start at the end of the object.
Lining up the ruler at the end of an object gives us an exact measurement starting from zero.
Part C: True or False?
Read each statement. Circle True or False.
1. A desk is shorter than a pencil.
True False
A desk is much bigger than a pencil because you can place several pencils across one desk, so the desk is longer.
2. You can use paper clips to measure a ribbon.
True False
Paper clips are all the same size, so lining them along a ribbon lets you count how many clips long it is.
3. An inch is a unit of length.
True False
Inches are standard units we use to measure length on rulers and tape measures.