We put 45 small stones equally into 3 jars. Calculate the number of small stones in one jar.
Mathematical sentence: \(45\space\div\space3=\underline{\quad\quad}\)
METHOD
\(\;\;\;15\\ 3\overline{\smash{)}45}\\ \,\underline{-3}\downarrow\\ \;\;\,15\\ \;\underline{-15}\\ \;\;\,\,\;00 \)
Divide tens
4 tens\(\div\) 3 = 1 tens remainder 1 tens
Change 1 tens to 10 ones.
10 sa \(+\) 5 sa = 15 sa
Divide ones
15 ones \(\div\) 3 = 5 ones
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