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LEVEL # 4 - WORD PROBLEMS , PART 1 - ESTIMATION , ORDER OF OPERATIONS - CONCENTRATION

SOLVING WORD PROBLEMS , USING ESTIMATION , AND THE ORDER OF OPERATIONS FOR SIMPLIFYING PROBLEMS

AB
WHOLE NUMBERALSO CALLED COUNTING NUMBERS . ONE OF THE POSITIVE INTEGERS OR ZERO ; ANY OF THE NUMBER { 0, 1, 2, 3, … }
ESTIMATIONA WAY OF GETTING A " ROUGH IDEA " OF WHAT A SOLUTION TO A PROBLEM MIGHT BE BEFORE DOING THE EXACT CALCULATIONS
ROUNDINGA WAY OF ESTIMATING WHERE YOU ROUND A WHOLE NUMBER OR A DECIMAL BY FINDING THE DIGIT IN THE PLACE YOU ARE ROUNDING TO , AND THEN LOOKING AT THE DIGIT TO THE RIGHT OF THE RIGHT OF THE PLACE YOU ARE ROUNDING TO . IF THE DIGIT TO THE RIGHT IS 5 OR MORE , THEN THE DIGIT IN THE PLACE YOU ARE ROUNDING TO INCREASES BY ONE . IF IT IS 4 OR LESS THEN THE DIGIT YOU ARE ROUNDING DECREASES BY ONE
FRACTIONA SMALL PART OR SEGMENT OF SOMETHING . IN MATH A NUMBER USUALL EXPRESSED SUCH AS a/b . IN ROUNDING , IF THE FRACTION IS LESS THAN 1/2 IT IS ROUNDED DOWN , IF IT IS 1/2 OR GREATER ( 3/4 AS AN EXAMPLE ) IT IS ROUNDED UP TO THE NEXT WHOLE NUMBER
MIXED NUMBERSA NUMBER REPRESENTED BY THE COMBINATIO OF A WHOLE NUMBER AND A FRACTION > FOR EXAMPLE : 3 1/4 . IF THIS EXAMPLE WAS ROUNDED IT WOULD BE ROUNDED DOWN TO 3 ( WITH THE FRACTION BEING DROPPED ) BECAUSE THE 1/4 FRACTION IS LESS THAN 1/2
ORDER OF OPERATIONSMUST BE USED TO SIMPLIFY MATHEMATICAL EXPRESSIONS TO GET THE CORRECT ANSWER


7th and 8th GRADE SOCIAL STUDIES TEACHER
UNO BRIGHTON PARK
Chicago, IL

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