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MATH GAME / ESTIMATING
MADE BY KATHERINE
CHAPTER 4
InstructionsNext:
INSTRUCTIONS INTRODUCTION
This game is a practice to round off. All you have to do is read the description and answer the question correctly.
DEFINITION OF ROUNDING
ROUNDING MEANS REDUCING THE DIGITS IN A NUMBER WHILE TRYING TO KEEP ITS VALUE SIMILAR.
THE RESULT IS LESS ACCURATE, BUT EASIER TO USE.
THIS IS THE COMMON METHOD
* DECIDE WHICH IS THE LAST DIGIT TO KEEP* INCREASE IT BY 1 IF THE NEXT DIGIT IS 5 OR MORE (THIS IS CALLED ROUNDING UP)* LEAVE IT THE SAME IF THE NEXT DIGIT IS LESS THAN 5 (THIS IS CALLED ROUNDING DOWN)
EXAMPLE: 243 ROUNDED TO THE NEAREST TEN IS 240 (BECAUSE 3 IS LESS THAN 5)
MATHSISFUN.COMBack:
QUESTION 1 Round off to nearest 10
598
580 590
610 600
CORRECT
GOOD JOB!
Next:
WRONG
590…591…592…593…594…595…596…597…598 … 599… 600
Back: Next:
8 2
2 is smaller that 8 so we have to go with 600
QUESTION 2 Round off to nearest 100 decimal
19.5857287
19.59 19.586
19.588 19.685
CORRECT
GOOD JOB!
Next:
WRONG
Back: Next:
Try again
QUESTION 3 Round off to nearest 100th number
13’484
13’490 13’584
13’500 13’400
CORRECT
GOOD JOB!
Next:
WRONG
Back: Next:
Try again
QUESTION 4 Round off to nearest 1000th number
762’342
763’000 763’342
762’000 762’342
CORRECT
GOOD JOB!
Next:
WRONG
Back: Next:
Try again
QUESTION 5 Round off to nearest 1th number
13.873
14.873 13
13.9 14
CORRECT
GOOD JOB!
Next:
WRONG
Back: Next:
Try again
QUESTION 6 Round off to nearest 5th number
36
40 30
35 45
CORRECT
GOOD JOB!
Next:
WRONG
Back: Next:
Try again
QUESTION 7Round off to nearest 10’000th number
762’342
770’000 763’000
760’000 763’000
CORRECT
GOOD JOB!
Next:
WRONG
Back: Next:
Try again
QUESTION 8Round off to nearest 50th number
89’640
89’600 89’700
89’650 89’645
CORRECT
GOOD JOB!
Next:
WRONG
Back: Next:
Try again
QUESTION 9 Round off to nearest 100th Decimal
1347.972
1348.0 1347.96
1347.98 1347.97
CORRECT
GOOD JOB!
Next:
WRONG
Back: Next:
Try again
QUESTION 10Round off to nearest 1000th Decimal
.76261
.76361 .762
.763 .761
CORRECT
GOOD JOB!
Next:
WRONG
Back: Next:
Try again
END
THANK YOU FOR PLAYING!
I HOPE YOU LIKED IT