1 1 is 1 2 1s are 2 3 1s are 3 4 1s are 4 5 1s are 5 6 1s are 6 And 7 1s are 7 8 1s are 8 9 1s are 9 And 10 1s are 10 With 1s you can make any Numberblock. Now, isn’t that clever? If you just add 1 or ...
Which order should you add two numbers? Numberblocks Two and Three have the answer: you can add two bananas to three bananas, or three bananas to two bananas and the total stays the same. It's five ...
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