Problems About Comparing; Elasped-Time Problems; Problems About Equal Groups

1. Problem of the Day
What is the sum of the first ten even numbers?

2. ANSWERS TO WP 11
1) 115,000 visitors 13) $249
3) 1193 runners 15) $1000.00
5) a. -2, 0, 1/2, 1 b. 1/2 17) 3 1/9
7) 1 • 2 < 1 + 2 19) 9720
9) a. 1, 2, 4, 8, 16 21) $44.70
b. 1, 2, 3, 4, 6, 8, 12, 24 23) 5/54
c. 1, 2, 4, 8 25) a. 15/4 b. 4/15 c. 1
d. 8 27) 5/8, 3/4, 7/8, 1
11) 29) segment BC = 1 5/8 inches

3. Something To Think About
Is God restricted in time like we are? Is it impossible for
God not only to slow elapsed time by high speed, but
to experience time in ways unknown to us? Psalms
90:4 says, "For a thousand years in your sight are like a
day that has just gone by, or like a watch in the night."
2 Peter 3:8 says, "But do not forget this one thing, dear
friends: With the Lord a day is like a thousand years,
and a thousand years are like a day." So it seems fairly
certain that God is not limited in time the way we are.

4. Problems About
Comparing; Elapsed-Time
Problems
Lesson 12

5. Problems About Comparing;
Elapsed-Time Problems
What are some real-world situations where you would need to
compare?
How can you use estimation to see if an answer is reasonable?
What is the formula for finding the difference in comparison problems?
When you come to school in the morning, is that earlier or later than
when you leave school in the afternoon?
When you turned 10, was that date earlier or later than when you
turned 9?
What is the formula for finding the difference in elapsed-time problems?

6. Practice
How many years were there from 1215 to 1791?
John F. Kennedy was elected president in 1960 at the
age of 43. In what year was he born?
Write a word problem about comparing that fits this
equation: 58 in. - 55 in. = d
Write a word problem about elapsed time that fits this
equation: 2003 - b = 14

7. PROBLEMS ABOUT EQUAL
GROUPS
Lesson 13

8. PROBLEMS ABOUT EQUAL
GROUPS
Understand the problem
Make a Plan
Solve - Carry out the plan
Check - Do I have a reasonable answer? Does it
make sense?

9. PROBLEMS ABOUT EQUAL
GROUPS
Juanita packed 25 marbles in each box. If she filled 32
boxes, how many marbles did she pack in all?

10. PROBLEMS ABOUT EQUAL
GROUPS
Movie tickets were $8 each. The total ticket sales
were $960. How many tickets were sold?

11. PROBLEMS ABOUT EQUAL
GROUPS
Six hundred new cars were delivered to the dealer by
40 trucks. Each truck carried the same number of
cars. How many cars were delivered by each truck?

12. PROBLEMS ABOUT EQUAL
GROUPS
Homework: page 90 1-29 odds