
3.4 Lower and upper bounds
Authored by Aizlhee Rose Pangilinan
Mathematics
8th Grade
Used 22+ times

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1.
DRAW QUESTION
2 mins • 5 pts
The distance from Tokyo to Melbourne is 8000 km when rounded to 1 significant figure.
Write down the upper and lower bounds of the possible distance between the cities.
2.
DRAW QUESTION
2 mins • 5 pts
A number is rounded to 2 significant figures, and the answer is 4200.
Write down the upper and lower bounds.
3.
DRAW QUESTION
2 mins • 5 pts
Salma’s height is measured as 164 cm to the nearest cm.
Write an inequality to show the range of the possible values of the height.

4.
DRAW QUESTION
2 mins • 5 pts
A decimal number is rounded to the nearest ten.
Write down the inequality to show the range of values that the number can be
when the answer is 40.

5.
DRAW QUESTION
2 mins • 5 pts
A decimal number is rounded to the nearest ten.
Write down the inequality to show the range of values that the number can be
when the answer is 810.

6.
DRAW QUESTION
2 mins • 5 pts
A decimal number is rounded to the nearest hundred.
Write down the inequality to show the range of values that the number can be
when the answer is 2300.

7.
DRAW QUESTION
2 mins • 5 pts
A number is rounded to 2 significant figures.
Write down the inequality to show the range of values that the number can be
when the answer is 32 000.

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