Finding Elapsed Time Within an Hour

What is the first step in calculating elapsed time on a clock?

• Count the minutes anticlockwise

• Calculate the total hours

• Mark the end time

• Mark the start time

How do you count the minutes between the start and end time in the first example?

• Clockwise in intervals of five

• Randomly

• In intervals of ten

• Anticlockwise

How many minutes passed from 7:40 AM to 8:25 AM?

• 45 minutes

• 40 minutes

• 50 minutes

• 35 minutes

What makes the second problem more difficult than the first?

• It is easier than the first

• There are fewer minutes to count

• The minutes do not end on a 0 or 5

• The minutes end on exact numbers

In the second problem, how is the start time minute marked?

• With a number

• With a symbol 'e'

• With a letter 'm'

• With a symbol 's'

What is the method used to count from the start to the end time in the second problem?

• Counting by twos

• Counting by threes

• Counting by fives and ones

• Counting by tens

What is the total elapsed time in the second scenario?

• 28 minutes

• 33 minutes

• 30 minutes

• 35 minutes

How is the end time minute marked in the second problem?

• With a letter 'm'

• With a symbol 's'

• With a number

• With a symbol 'e'

What intervals are used for counting between tallies in the second problem?

• By ones

• By fives

• By tens

• By twos

In the second problem, what is the sequence of counting to determine the total minutes?

• Start with fives, then ones

• Start with ones, then fives

• Only count by ones

• Only count by fives