# Investigating properties of number

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## Lesson details

### Key learning points

1. In this lesson, we will investigate the terms 'palindromic numbers' and 'iterations'.

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## Worksheet

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## Starter quiz

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### 5 Questions

Q1.
What is the answer to -1 + 2 + 3?
-3
-4
3
Q2.
What is the answer to 11 + 12 - 13?
11
12
13
Q3.
What is the answer to the calculation 96 + 97 - 98?
94
98
99
Q4.
What is the answer to 87 - 88 + 89
86
89
90
Q5.
Which of the calculations below have a sum of 61?
-60 + 61 + 62
Correct answer: -61 + 60 + 62
60 - 61 - 62
60 + 61 - 62

## Exit quiz

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### 5 Questions

Q1.
Which of the following statements are true?
Correct answer: All single digit numbers are palindromic
Any number with the digit 7 is a palindromic number
Any number with the digit 8 is a palindromic number
Any two digit number is a palindromic number
Q2.
Which of the numbers below are not palindromic?
14
231
3
Q3.
Which of the numbers below requires more than 2 iterations?
47
53
81
Q4.
How many iterations does the number 173 require?
1
3
4
Q5.
How many iterations does the number 89 require?