Ages 12–14🧮 Mathematics10 verified questions on this shelf
Estimating by rounding
Use approximation through rounding to estimate answers and calculate possible resulting errors expressed using inequality notation a < x ≤ b; understand upper and lower bounds of rounded values
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Question 1 of 3
What is the binary representation of the decimal number 45?
Question 2 of 3
What is the decimal equivalent of the binary number 101101?
Question 3 of 3
A carpenter measures one wooden plank to be 12.7 cm long. She rounds each measurement to the nearest whole centimeter to estimate the total length of 23 planks placed end‑to‑end. Write an inequality that gives all possible values of the total length L (in centimeters) of the 23 planks.
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