Thoughts and musings from the Hill Mead KS2 All Stars!
One possible way could be 6,7,4 and 3.These four nunbers add up to 20.
Another way is 2+4+5+9.I calculated 2+4=6+5=11+9=20
Another way is 7+3+2+8=20.I just try to find number bonds to 20 and use it to find out some possibilities
Super idea Ruqayya. This is an excellent example of how knowledge of number bonds can help you solve problems.
You can also do 1+8=9+7+4=20
I did 5+3=8+6=13+7=20
I calculated 6+3=9+7=16+4=20
I also found 8+3=11+5=16+4=20
I also did 6+7=13+5=18+2=20
I had found all 7 possibilities.If I can do it so can you.
I had tried the challenge and had gotten 16. I did 7+5=12+4=16
I also did 8+2+5+1=16
I tried the challenge and calculated 3+4+7+2=16
9+1+6+4=206+4+8+2=202+4+6+8=201+7+4+8=20All I did was pick 2 number's in between 1-8 and I added them together, then I took the number away from 20.
One other way is 7+3+2+8
A possibility could be 4+3=7+5=12+8=20
Another possibility is 8+2+4=14+6=20
Some of the possibilities could be 4+6+8+2=208+7+2+3=204+5+8+3=201+6+5+8=20
6x4 so the numbers that you have to count in must be in fours.
Here are all 7 ways 1.8+2+9+12.7+3+4+63.5+8+6+14.7+5+4+15.9+1+7+36.8+7+4+17.9+7+3+1Those are all the ways.
another way is 16+4=20 or 18+2=20 or 17+3=20 or 15+5=20 or 19+1=20 or just try number can to 20.
One way is 10,5,3,2Another way is 9,5,4,2Another way is 10,4,5,1For the challenge10,4,27,5,49,4,3
These are all the combinations:1.8+5+4+3=202.5+6+8+1=203.4+8+2+6=204.4+5+7+4=205.8+7+4+1=206.4+5+6+5=20Challenge:4+5+7=16
One of the possibilities are 9,5,5,1 The second one 1,4,13,2. The other one is 10,4,5,1. The fourth one is 10,4,3,3 the fifth one is 6,9,3,2The sixth one is 4,8,4,4 And the last one is 9,7,3,1.
The fifth different ways can be:9+8=17+3=209+9=18+2=2010+5=15+2=17+3=209+6=15+1=16+4=2010+4=14+1=15+2=17+2=19+1=20
I've found many different ways but I just want to show you this one which is:6+6+6+2=20
I think that the challenge could be:8+8=168+5=13+3=169+3=12+4=16I think that there is many different ways to make 16 by using numbers from 1-8 but it I think that is all the calculations I can make to get the number 16.
Armarnie,make sure you remember it's cards from 1-8