Guess the number

Learning Objectives Use 'greater than' and 'less than' clues to narrow down a range of possible numbers. Identify and eliminate numbers based on 'even' or 'odd' clues. Apply multiplication facts to find numbers that are multiples of a given number. Use clues about the sum or product of a number's digits. Combine two or more clues to find a single correct number. Explain the logical steps they took to solve a 'Guess the Number' puzzle. I'm thinking of a secret number between 1 and 10... it's an odd number, and it's greater than 7. Can you guess my number? 🕵️ In this lesson, you will become a number detective! You will learn how to use clues to hunt for a secret number. This is a fun game that helps your br...

TermDefinitionExample ClueA piece of information that helps you solve a puzzle or find a secret number.A clue could be 'The number is even' or 'The number is less than 20'. RangeThe group of numbers where the secret number can be found, from a starting number to an ending number.If the clue is 'The number is between 10 and 20', the range is 11, 12, 13, 14, 15, 16, 17, 18, 19. EliminationThe process of crossing out numbers that do not fit the clues.If a clue says 'The number is odd', you can eliminate all the even numbers like 2, 4, 6, and 8. Even NumberA whole number that ends in 0, 2, 4, 6, or 8.12, 34, 56, and 90 are all even numbers. Odd NumberA whole number that ends in 1, 3, 5, 7, or 9.1, 23, 45, and 87 are all odd numbers. MultipleA number you...

Greater Than / Less Than Rule x > a (x is greater than a) and x < b (x is less than b) Use these symbols to understand the range of your number. The 'mouth' of the symbol always opens to the bigger number. For example, 'x > 10' means the number must be 11 or more. Multiple Rule Number = n \times k A number is a multiple of 'n' if it can be divided by 'n' with no remainder. For a clue like 'The number is a multiple of 4', you should think of your 4s multiplication facts (4, 8, 12, 16...). Digit Sum Rule For a number 'ab', the digit sum is a + b If you have a two-digit number, you can add the individual digits together. For the number 35, the sum of its digits is 3 + 5 = 8.