Math 2.9D Measurement in inches and centimeters

Look at the picture above. Which object is 18 centimeters long?

• The bird is 18 centimeters long
• The tool is 18 centimeters long
• The blue car is 18 centimeters long

Look at this big arrow on top of the ruler in the picture above. How long is this arrow?

• The big arrow is 3 inches long
• The big arrow is 12 inches long
• The big arrow is 9 inches long

Look at the line on top of the ruler in the picture above. How many inches long is this line? Remember to start on the number the line starts at and count up to where it stops.

• The line is 6 inches long
• The line is 10 inches long
• the line is 11 inches long

Look at the purple line above. How long is this line? Is it in centimeters or inches? (Remember that centimeters are smaller than inches)

• The purple line is 9 centimeters long
• The purple line is 9 inches long
• The purple line is 10 centimeters long

Look at the green picture above. Which object is 17 centimeters long? Mark the correct answer below

• Picture C is 17 centimeters long
• Picture A is 17 centimeters long
• Option 3

Look at the arrow in the picture sitting below the ruler. How many inches in length is the arrow?

• The arrow is 9 inches long
• The arrow is 6 inches long
• The arrow is 8 inches long

Look at the arrow in the picture on top of the arrow sitting above the ruler. How many inches long is the ruler? Remember to start where the ruler is and then count the inches.

• The arrow is 11 inches long
• The arrow is 5 inches long
• The arrow is 6 inches long

Look at the picture above of the cylinder. How many inches is the cylinder?

• The cylinder is 9 inches long
• The cylinder is 2 inches long
• The cylinder is 7 inches long

Look at the rectangle in the picture above. How long is this rectangle in centimeters? Remember that centimeters are the smaller lines on the ruler.

• The rectangle is 17 centimeters long
• The rectangle is 16 centimeters long
• The rectangle is 15 centimeters long