I’ve created a series of number bonds ‘workouts’ in the style of (the fantastic) Times Tables Rockstars.

There’s no website I’m afraid(!), these are just excel sheets that randomly generate numbers each time you load them. That means that you have an infinite variety. Hurrah!

There are:

3 Levels of difficulty for number bonds to 10 (add, subtract, mixed)

The same again (3 levels) for bonds to 20:

6 levels of difficulty for bonds to 100 (below is level 6):

and I’ve also added in 2 levels for bonds to 60 (time), 180 (angles) and 360 (more angles).

MAKE SURE YOU READ THIS NEXT BIT:

Each sheet has randomly generated numbers on it. That means that every time you do something (eg press enter), the whole sheet will change. That’s great for making different worksheets each week, but really bad if you want to reload an old one with exactly the same questions on it.

SO!! If you want to make a permanent copy of any single set of questions, then print the page to pdf.

Do that by selecting file / print but selecting PDF instead of a printer.

PS the answers are all in each sheet as well. Just change the font colour of the cells where the answers should go and voila, there are the answers.

Here is the excel file. All the different sheets are listed along the bottom of the file (as…excel sheets).

It just crashed my Excel! – it’s not a problem, but is there anything else in there apart from RAND() ?

If it has other tricky stuff in there then I won’t open it again (antique PC), but if it is just a random number generator then I’ll give it another go.

This is brilliant- thanks.But…..in primary we need them to be fluent adding numbers within10 and within 20 eg 3+4 and 11+5. Please could we have some of those as well. One lot where the equations sum to anything up to and including 10 ( integers only obvs.) then one with answers in the 11-20 range. Both lots written sometimes as empty box, sometimes as traditional ‘sum’ , sometimes as subtraction.
No more counting on fingers in ks2 ( or year 2)! Did nag Bruno to make this but to no avail……
Thanks

Hi, thanks for the resource.

It just crashed my Excel! – it’s not a problem, but is there anything else in there apart from RAND() ?

If it has other tricky stuff in there then I won’t open it again (antique PC), but if it is just a random number generator then I’ll give it another go.

Thanks again for all the lovely ideas

Chris

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It has a lot of randbetween() and a few vlookups.

Might be an idea to paste each sheet into different workbooks if it’s slowing down too much

This is brilliant- thanks.But…..in primary we need them to be fluent adding numbers within10 and within 20 eg 3+4 and 11+5. Please could we have some of those as well. One lot where the equations sum to anything up to and including 10 ( integers only obvs.) then one with answers in the 11-20 range. Both lots written sometimes as empty box, sometimes as traditional ‘sum’ , sometimes as subtraction.

No more counting on fingers in ks2 ( or year 2)! Did nag Bruno to make this but to no avail……

Thanks

can you not just write in a different answer for each question? e.g. on sheet 1, they all equal 10, but you can write whatever you want in there.