 | William Vogdes - 1847 - 324 páginas
...contained in their sum. 3. Write down what remains above the tens, or if nothing remains, a cipher, and carry as many ones to the next row as there were tens. The reason why we carry 1 for every 10, in adding integers, is, because numbers increase in a tenfold... | |
 | William Vogdes - 1849 - 134 páginas
...contained in their sum. 3. Write down what remains above the tens, or if nothing remains, a cipher, and carry as many ones to the next row as there were tens. 4. Add up the second row, together with the number carried in the same manner as the first ; and proceed... | |
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... 1. Place the numbers under each other, so that the units may stand under units, tens under tens, &c., and draw a line under them. 2. Add up the figures in the row of units, and find how many tens are contained in their sum. 3. Write down what remains... 