140 Speed Math for Kids
We could also have applied our shortcut to the 11 remainder. Th e
fi rst digit is 1, which we add to our answer, and the sum (1 + 1) gives
a remainder of 2.
Test you rself
Try the shortcut with the following:
a) 25 ÷ 9 =
b) 61 ÷ 9 =
c) 34 ÷ 9 =
d) 75 ÷ 9 =
e) 82 ÷ 9 =
The answers are:
a) 2 r7 b) 6 r7 c) 3 r7
d) 8 r3 e) 9 r1
Th ese methods are fun to play with and give insights into the way
numbers work.
brent
(Brent)
#1