Addition, subtraction and division, respectively.
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they used clay tablets and pictograms
Divide each side by 6: a = 6
The Roman symbol "X" was used to represent ten because it resembles two "V"s (which stood for five each) placed together. This symbol was part of the Roman numeral system, which used various letters to represent different numbers.
Divide a figure into three parts. Put 1.50 into each of the parts. Shade in two of them.
inverse operation