Show:
Vocabulary
ESTIMATE
PROPERTIES OF ADDITION
SIMPLIFY
L.C.D
100

A NUMERATOR, AND WHAT DOES IT STAND FOR?

WHAT IS.....THE TOP NUMBER IN THE FRACTION; REPRESENTS A PORTION OF THE WHOLE

100
WHAT ARE THE BENCHMARKS TO ESTIMATE

0,1/2 ,1

100
TWO PROPERTIES OF ADDITION
WHAT IS COMMUTATIVE AND ADDITION PROPERTIES OF ADDITION
100

4/8

1/2

100

5,7

35

200

 A DENOMINATOR?

WHAT IS THE BOTTOM NUMBER IN THE FRACTION, REPRESENTS THE TOTAL NUMBER OF PARTS
200

3/8 IS ESTIMATED TO WHAT?

1/2

200

(2 3/8 + 1 3/4) + 5 7/8 =

10

200

5/45

1/9

200

16,8

16

300

PRODUCT

WHAT IS THE ANSWER TO A MULTIPLICATION PROBLEM

300

ESTIMATE 15/17

1 WHOLE

300

1 1/4 +(3 2/3 + 5 3/4) =

10 2/3

300

23/11

2 1/11

300

2,3

6

400

FACTOR

WHAT IS A NUMBER THAT IS MULTIPLIED BY ANOTHER NUMBER

400
ESTIMATE THE SUM 3/8 + 5/6

1/2 + 1 = 1 1/2

400

3 1/4 + (3 1/4 + 5 1/5) =

11 7/10

400

36/12

3

400

6,8

48

500
COMMUTATIVE PROPERTY,.....AND ASSOCIATIVE PROPERTY
COMMUTATIVE PROPERTY STATES THAT SWITCHING THE ORDER OF THE ADDENDS WILL NOT AFFECT THE SUM....THE ASSOCIATIVE PROPERTY THE PROPERTY OF GROUPING ADDENDS WITH PARENTHESIS....GROUPING ADDENDS WILL NOT CHANGE THE SUM
500

ESTIMATE THE SUM AND DIFFERENCES

8/9 + 1/7 =

8/9- 5/6=

8/9- 2/5=

8/9 + 1/7 = 1

8/9 - 5/6= 0

8/9 -2/5 = 1/2

500

2 1/10 +(1 2/7 +4 9/10)=

8 2/7

500

5 3/4 + 2/6


5 9/12 + 4/12 = 5 13/12   

6 1/12

500

11,12

132