Transum Software

Some Sums and Products

Number puzzles involving adding, multiplying and problem solving

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No calculator

This is level 1: Given two numbers find their sum and product. You will be awarded a trophy if you get at least 12 answers correct and you do this activity online.

Add the two numbers in the orange area and put the sum below the plus sign arrow. Multiply the two numbers in the orange area and put the product below the multiplication sign arrow.

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This is Some Sums and Products level 1. You can also try:
Level 2 Level 3 Level 4 Level 5 Level 6

Instructions

Try 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.

Why am I learning this?

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 12 July 'Starter of the Day' page by Miss J Key, Farlingaye High School, Suffolk:

"Thanks very much for this one. We developed it into a whole lesson and I borrowed some hats from the drama department to add to the fun!"

Comment recorded on the 8 May 'Starter of the Day' page by Mr Smith, West Sussex, UK:

"I am an NQT and have only just discovered this website. I nearly wet my pants with joy.
To the creator of this website and all of those teachers who have contributed to it, I would like to say a big THANK YOU!!! :)."

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Answers

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Teachers

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Scan the QR code below to visit the online version of this activity.

This is a QR Code

https://www.Transum.org/go/?Num=784

Description of Levels

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Level 1 - Given two numbers find their sum and product

Level 2 - Given one number and the sum find the other number and the product

Level 3 - Given one number and the product find the other number and the sum

Level 4 - Given the sum and the product find the two numbers

Level 5 - Given the sum and the product find the two numbers (negative numbers)

Level 6 -

Two Numbers Starter - The numbers will change if you refresh the page.

Sum = Product Starter - In the context of family sizes.

Oblongs Exercise - Level 2, similar idea but involving the area and perimeter of rectangles.

More Number Activities including lesson Starters, visual aids, investigations and self-marking exercises.

Answers to this exercise are available lower down this page when you are logged in to your Transum account. If you don’t yet have a Transum subscription one can be very quickly set up if you are a teacher, tutor or parent.

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