Worked examples
Two examples
Example 1
A thermometer is labeled every 10 degrees, with 5 small spaces between labels. The level is 3 marks above 20. What does it show?
- 10 degrees in 5 spaces: each mark is 2 degrees.
- 3 marks above 20: 20 + 6.
Answer: 26°F
Example 2
A number line has only 0 and 100 labeled, with 8 equal spaces. An arrow points to the 3rd mark. What number is it?
- 100 in 8 spaces: each space is 12.5.
- 3 × 12.5 = 37.5.
Answer: 37.5
Where this is taught: Reading a Scale, “The one method”
The drill
Ten problems
How many:
Type each answer, then press Check my answers at the bottom. Commas in large numbers are fine.Write each answer on the line. The answer key, with the reasoning, is on the last page.