# ROUNDING, ESTIMATING AND BOUNDING

Welcome to your ROUNDING, ESTIMATING AND BOUNDING

What is the number 2,375 to the nearest 100?
What is the number 423 to the nearest 10?
What is the number 304.5 to the nearest whole number?
What is the number 304.5 to the nearest whole number?
A box contains 12 cans. Estimate the number of boxes required, if there are 458 cans.
Round 45.8724 to 2 decimal places
Round 3.0009 to 3 decimal places
Which of the following numbers has four significant figures?
Which of the following has 2 significant figures?
Round 1109 to three significant figures.
Round 4.0452 to two significant figures.
The length of a book is given to be 15 cm rounded to the nearest whole number. Which of the following is the correct upper and lower bound for the length of the book?
The perimeter of a rectangle is calculated to be 48 cm when rounded to the nearest whole number. Which of the following is the correct upper and lower bound for the perimeter of the rectangle?
What is the upper bound for the calculation, 46×13? Given that the numbers are rounded to the nearest whole number.
What is the lower bound for the calculation, 30×56? Given that the numbers are rounded to the nearest whole number.