deletions | additions       diff --git a/bits1.tex b/bits1.tex  index 93e88dd..3f0e26e 100644  --- a/bits1.tex  +++ b/bits1.tex 
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Let us examine now the multiplication of integer numbers and of bits.  \\  Consider again $2,3,4 \in ZZ$. \ZZ$.  We have that $$(2\cdot 3)\cdot 4 = 6 \cdot 4 =24 =2 \cdot (3\cdot 4) = 2 \cdot 12,$$  so, as it was for the sum, we can remove the parentheses and write   $$2\cdot 3 \cdot 4=24.$$