110
1/10 = 10/100. 10/100 + 1/100 = 11/100
Add a 0 onto 100, or add 2 0's onto 10. Multiply by 10 = add a 0 Multiply by 100= add 00 Multiply by 1000 = add 00 Teachers prefere not to say 'add a 0'. This is like a cheat, and does not work for decimals.
-10 and +10.
100
double and add 10%
100 x 23 = 2300 (If timing by 10, simply add a zero. If by 100, add two zeroes.)
add 1 through 10 times 10 then add 10 through 90 and add the answers
One whole.
it is 100
41.5 + 58.5 = 100
100 is ten times more than 10