1. MATH VOCABULARY
&
GUIDED QUESTIONS
DAY 18

2. NEXT, TABLE OF CONTENTS

3. Date Table of Contents Page
10/3/12
Math Vocabulary 35
10/3/12
Guided Question 36

4. NEXT, MATH VOCABULARY

5. 35 3 x 7 = 7 x 3 9 x 1 = 9 10/3/2012 MATH VOCABULARY
commutative property of multiplication –
A rule of math that says changing the order
of the numbers you multiply (factors) does
not change the product.
3 x 7 = 7 x 3
identity property of multiplication –
A rule of math that says the product of any
number and one is the original number.
9 x 1 = 9
associative property of multiplication –
A rule of math that says when three
or more numbers are multiplied, the product is the same
no matter how you group the problem numbers (factors).

6. (5 x 7) x 2 = 5 x (7 x 2) associative property of multiplication –
A rule of math that says when three
or more numbers are multiplied, the product is the same
no matter how you group the problem numbers (factors).
(5 x 7) x 2 = 5 x (7 x 2)

7. NEXT, INDEX

8. C closest ten 13 commutative property of addition 27 35
commutative property of multiplication 35

9. I inverse 19 identity property of addition 27
identity property of multiplication 35

10. A approximate 9 about 11 associative property of addition 27 area 29
associative property of multiplication 35

11. NEXT, GUIDED QUESTION

12. 36
10/3/12
Guided Question

13. Question of the Day: There were 3,126 people at the fair on Saturday and 3,759 people on Sunday. Which is the best estimate of the total number of people at the fair on both days?

14. 36
10/3/12
Guided Question
There were 3,126 people at the fair on Saturday.
and 3,759 people on Sunday. Which is the best
estimate of the total number of people at the
fair on both days?
The question is asking you to estimate the total
number of people at the fair on 2 days.
The words “best estimate” mean ROUND.
The word “total” means ADD.
You must round the numbers before you add.
It doesn’t say what to round the numbers to,
so round each number to its highest place value -
THE ONE THOUSANDS PLACE.

15. 3, 7 5 9
4, 0 0 0
3, 1 2 6
3, 0 0 0
4, 0 0 0
3, 0 0 0
7, 0 0 0
THE ANSWER IS
7,000

16. Do not forget that your MATH JOURNAL is a valuable tool in the 4th Grade. Make sure you are following along and copying down what is important. DO NOT MISPLACE IT.