&GUIDED QUESTIONS

MATH VOCABULARY

DAY 14

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Table of ContentsDate Page9/25/129/25/12

Math Vocabulary 27Guided Question 28

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commutative property of addition – A property (rule) of mathematics that states

27MATH VOCABULARY9/25/2012

changing the order of the numbers you add(the addends) does not change the sum.

identity property of addition – A property (rule) of mathematics that statesthe sum of any number and zero is the originalnumber.

associative property of addition – A property (rule) of mathematics that states when threeor more numbers are added, the sum is the sameregardless of the grouping of the numbers you add (addends).

4 + 2 = 2 + 4

5 + 0 = 5

associative property of addition – A property (rule) of mathematics that states when threeor more numbers are added, the sum is the sameregardless of the grouping of the numbers you add (addends).

(2 + 3) + 4 = 2 + (3 + 4)

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closest ten 13

C

commutative property of addition 27

Iinverse 19identity property of addition 27

27associative property of addition

Aapproximate 9about 11

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9/25/2012 28Guided Question

Question of the Day: There were 1,455,268 people living in Weston in 1990. In the year 2000 there were 1,426,599 people. How many more people were living in Weston in 1990 than in 2000?

Work out the problem. Then in 3 – 4 sentences

explain how you got your answer.

9/25/2012 28There were 1,455,268 people living in Weston in 1990.

Guided Question

In the year 2000 there were 1,426,599 people.How many more people were living in Weston in1990 than in 2000?

We want to find the difference between twoHUGE numbers. Difference is the answer you getwhen you subtract (-). So we will be subtracting for this problem.

My answer is 28,669.

We want to find the difference between twoHUGE numbers. Difference is the answer you getwhen you subtract (-). So we will be subtracting for this problem.

1, 4 5 5, 2 6 8 1, 4 2 6, 5 9 9

5 18

9

1 15

6

4 11

6

4 14

8 2 ,

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.