Understanding Length and Measurement

The video tutorial explains how to calculate the length of objects by adding or subtracting measurements. It covers three examples: determining the length of a pink chalk line that is longer than a blue one, calculating the total length of two cables on the Golden Gate Bridge when placed end to end, and finding out how much of a scarf was cut off to reach a new length. Each example involves basic arithmetic operations such as addition and subtraction to solve real-world measurement problems.

Dominique drew a line with blue chalk that was 72 cm long. How much longer was the pink line she drew?

• 12 cm

• 10 cm

• 14 cm

• 16 cm

What is the total length of the pink line that Dominique drew?

• 90 cm

• 84 cm

• 86 cm

• 72 cm

A cable on the Golden Gate Bridge is 33 meters long. How much longer is the second cable?

• 12 meters

• 11 meters

• 10 meters

• 13 meters

What is the length of the second cable on the Golden Gate Bridge?

• 33 meters

• 44 meters

• 46 meters

• 45 meters

If the two cables on the Golden Gate Bridge are lined up end to end, what is their total length?

• 81 meters

• 80 meters

• 79 meters

• 82 meters

Reynaldo's scarf was originally 36 cm long. How long is it after he cut it?

• 19 cm

• 18 cm

• 15 cm

• 20 cm

How many centimeters did Reynaldo cut off his scarf?

• 15 cm

• 18 cm

• 16 cm

• 17 cm

What is the difference in length between the original and the cut scarf?

• 18 cm

• 17 cm

• 15 cm

• 16 cm

If Reynaldo started with a 36 cm scarf and cut off 17 cm, what length is left?

• 20 cm

• 18 cm

• 21 cm

• 19 cm

What is the remaining length of Reynaldo's scarf after cutting?

• 21 cm

• 20 cm

• 19 cm

• 18 cm