Finding all possible numbers that could have been rounded to a multiple of ten

In this lesson, we will put on our investigation hats in order to find all the possible numbers that could have been rounded to a multiple of ten.

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Quiz:

Intro quiz - Recap from previous lesson

Before we start this lesson, let’s see what you can remember from this topic. Here’s a quick quiz!

Q1.42 rounded to the nearest 10 is

1/7

Q2.75 rounded to the nearest 10 is

2/7

Q3.15 rounded to the nearest 10 is

3/7

Q4.544 rounded to the nearest 10 is

4/7

Q5.891 rounded to the nearest 10 is

5/7

Q6.597 rounded to the nearest 10 is

6/7

Q7.Which number might have been rounded to give the answer 340?

7/7

This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

Unit quizzes are being retired in August 2023

Why we're removing unit quizzes from the website >
Quiz:

Intro quiz - Recap from previous lesson

Before we start this lesson, let’s see what you can remember from this topic. Here’s a quick quiz!

Q1.42 rounded to the nearest 10 is

1/7

Q2.75 rounded to the nearest 10 is

2/7

Q3.15 rounded to the nearest 10 is

3/7

Q4.544 rounded to the nearest 10 is

4/7

Q5.891 rounded to the nearest 10 is

5/7

Q6.597 rounded to the nearest 10 is

6/7

Q7.Which number might have been rounded to give the answer 340?

7/7

Video

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Worksheet

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Lesson summary: Finding all possible numbers that could have been rounded to a multiple of ten

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