Grade 4
Direction: Complete the table below by filling in actual and estimated elapsed time. Answer the questions that follow.
1) Which group finished first? The last?
2) What operation did you use to solve each answer?
3) Which group finished faster, Group 3 or Group 4?
4) Which group have the same longest estimated elapsed time?
5) If teacher Ruby will give additional points based on thier time, Which should be her basis, Actual elapsed time or Estimated elapsed time?
[TO FIND THE ELAPSED Time]
Method 1: Use a number line by counting 5 minute per unit.
Method 2: Subtract the minutes and then hours.
(Note: Regrouping if necessary by borrowing one hour. Rename one hour to 60 minutes and add to the given in minutes. Then subtract again the minutes and hours)
[TO FIND THE ESTIMATED ELAPSED TIME]
1. Round the times in minutes.
2. Subtract rounded times in tens in minutes.
3. Subtract the hours.
(Note: Regrouping if necessary by borrowing one hour. Rename one hour to 60 minutes and add to then subtract again the time in minutes and hours.)
Pahelp po need ko na po ngayon, Thank you in Advance.
Direction: Complete the table below by filling in actual and estimated elapsed time. Answer the questions that follow.
1) Which group finished first? The last?
2) What operation did you use to solve each answer?
3) Which group finished faster, Group 3 or Group 4?
4) Which group have the same longest estimated elapsed time?
5) If teacher Ruby will give additional points based on thier time, Which should be her basis, Actual elapsed time or Estimated elapsed time?
[TO FIND THE ELAPSED Time]
Method 1: Use a number line by counting 5 minute per unit.
Method 2: Subtract the minutes and then hours.
(Note: Regrouping if necessary by borrowing one hour. Rename one hour to 60 minutes and add to the given in minutes. Then subtract again the minutes and hours)
[TO FIND THE ESTIMATED ELAPSED TIME]
1. Round the times in minutes.
2. Subtract rounded times in tens in minutes.
3. Subtract the hours.
(Note: Regrouping if necessary by borrowing one hour. Rename one hour to 60 minutes and add to then subtract again the time in minutes and hours.)
Pahelp po need ko na po ngayon, Thank you in Advance.
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Answer:
Group 1:
Actual Elapsed Time: 0:27
Estimated Elapsed Time: 0:30
Group 2:
Actual Elapsed Time: 0:18
Estimated Elapsed Time: 0:20
Group 3:
Actual Elapsed Time: 0:24
Estimated Elapsed Time: 0:20
Group 4:
Actual Elapsed Time: 0:29
Estimated Elapsed Time: 0:30
Group 5:
Actual Elapsed Time: 0:12
Estimated Elapsed Time: 0:10
1. Group 5 and Group 4
2. Subtraction
3. Group 3
4. Group 1&4
5. Estimated Elapsed Time