Pentadd Quiz - Level 5Find the five numbers which when added or multiplied together in pairs to produce the given totals. |
This is level 5; Your computer is thinking of five integers between -9 and 9. Can you work out what they are?
When the five numbers are added in pairs the totals are:
-10, -4, 0, 0, 4, 8, 8, 14, 14, 18.
Type in your answers in order from smallest to largest.
This is Pentadd Quiz level 5. You can also try:
InstructionsTry your best to answer the questions above. Type your answers into the boxes provided leaving no spaces. As you work through the exercise regularly click the "check" button. If you have any wrong answers, do your best to do corrections but if there is anything you don't understand, please ask your teacher for help. When you have got all of the questions correct you may want to print out this page and paste it into your exercise book. If you keep your work in an ePortfolio you could take a screen shot of your answers and paste that into your Maths file. |
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Mathematicians are not the people who find Maths easy; they are the people who enjoy how mystifying, puzzling and hard it is. Are you a mathematician? Comment recorded on the 6 May 'Starter of the Day' page by Natalie, London: "I am thankful for providing such wonderful starters. They are of immence help and the students enjoy them very much. These starters have saved my time and have made my lessons enjoyable." Comment recorded on the 19 June 'Starter of the Day' page by Nikki Jordan, Braunton School, Devon: "Excellent. Thank you very much for a fabulous set of starters. I use the 'weekenders' if the daily ones are not quite what I want. Brilliant and much appreciated." |
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Level 1 - Positive integers between 1 and 10
Level 2 - Positive integers between 1 and 20
Level 3 - Positive integers between 1 and 50
Level 4 - Positive integers between 1 and 100
Level 5 - Integers between -9 and 9
Level 6 - Integers between -99 and 99
Level 7 - Whole numbers and halves
Level 8 - Decimals
Level 9 - Positive integers between 1 and 10 and products are calculated
Level 10 - Positive integers between 1 and 100 and products are calculated
Transum,
Monday, May 10, 2021
"The final question on the 2021 Junior Maths Challenge paper from the UK Mathematics Trust was "I choose four different integers. When I add all the pairs of these numbers in turn, the totals that I obtain are 23, 26, 29, 32 and 35, with one of these totals being repeated.
What is the largest of the four integers?""