Question

minimum: 21 maximum: 87
step 2: round the minimum down to the nearest 10.
range minimum: 20
step 3: round the maximum up to the nearest 10.
range maximum: 90
step 4: calculate the range.
range: 90 - 20 =
correct!
check

Explanation:

Step1: Identify the operation

We need to calculate \( 90 - 20 \).

Step2: Perform the subtraction

\( 90 - 20 = 70 \).

Answer:

70