Place Value is the value of the digits in the ones, tens, hundreds place of a number.
Estimation is like the "rounding" we did in school.
For example: 58
The digit in the ten's place is 5. The value of this digit is 50, not 5.
A good estimate would be 60 because it is the closest multiple of ten.
Understanding place value enables your child to take numbers apart and regroup them during computation. In this way, children can manipulate numbers in their head to make mental calculations without using a traditional paper and pencil method.
Being able to estimate, enables them to check the reasonability of their answers. If their answer is close to the estimate, they probably got it right. But on the other hand, if their answer is NOT close to the estimate, they probably made a mistake.
The following skills should be targeted to practice Place Value and Estimation on IXL:
Place Value M.1 M. 2
Regrouping M.7 M.13
Estimation (rounding) N.1 N.2 N.5
Thanks for your help in supporting the development of understanding of number through Place Value and Estimation.