74
4. WHOLE NUMBER COMPUTATION —MENTAL, ELECTRONIC, AND WRITTEN
Division
We first illustrate 235 ÷ 45 by repeated subtraction.
We have a quotient of 35 and a remainder of 15. Next we look at 14435 ÷ 345
using algorithmic methods.
Note. In the sca↵old method, 205 was the first estimate since 25 ⇥35 = 115,
which is less than 145.