ffirs.indd

136 Speed Math for Kids
Here is how it works. We are dividing 56 by 8. We set up the problem
as above, or, if you prefer, you can set up the problem as below. Stick
to the way you have been taught.
8 56
2
7
3
I will explain using the fi rst layout. We draw a circle below the 8
(the number we are dividing by—the divisor) and then ask, how
many do we need to make 10? Th e answer is 2, so we write 2 in a
circle below the 8. We add the 2 to the tens digit of the number
we are dividing (5 is the tens digit of 56) and get an answer of 7.
Write 7 above the 6 in 56. Draw a circle above our answer (7).
Again, how many more do we need to make 10? Th e answer is 3,
so write 3 in the circle above the 7. Now multiply the numbers in
the circles.
2 × 3 = 6
Subtract 6 from the units digit of 56 to get the remainder.
6 – 6 = 0
Th ere is 0 remainder. Th e answer is 7 with 0 remainder.
Here is another example: 75 ÷ 9.
2
8 r3
9 75
1