Praxis 7813- Place Value & Decimals- Questions with Answers
1. non-proportional objects that are not proportional to each other with respect to shape and size;
manipulatives often all items are the same size
2. scientific notation numbers expressed as the product of a base-10 number and a number be-
tween 1 and 10
i.e. 2.56 x 10 = 25.6
4.32 x 10^-4 = 0.000432
3. concrete opera- the third stage of Piaget's Theory of Cognitive development, occurring from 7
tional stage years old to adolescence, in which children begin to think logically and use
inductive reasoning
4. base 10 number Our number system. Each place location for a number has a value that is a
system power of 10
5. manipulatives objects used by students to illustrate and explore mathematical concepts, such
as to represent numbers in an equation
6. proportional ma- objects that are proportional to each other with respect to shape and size
nipulatives
7. number line a straight line where each number is equal distance from the next one
8. absolute value The distance a number is from zero, always a positive number
9. rounding a number is simplified to its closest multiple of 10, 100, 1,000, etc.
10. expanded form/ex- break apart each digit in the number and show the digits true value
panded notation
11. magnitude size of a number
12. place value the value of each digit in a number based on its location, or place
1. non-proportional objects that are not proportional to each other with respect to shape and size;
manipulatives often all items are the same size
2. scientific notation numbers expressed as the product of a base-10 number and a number be-
tween 1 and 10
i.e. 2.56 x 10 = 25.6
4.32 x 10^-4 = 0.000432
3. concrete opera- the third stage of Piaget's Theory of Cognitive development, occurring from 7
tional stage years old to adolescence, in which children begin to think logically and use
inductive reasoning
4. base 10 number Our number system. Each place location for a number has a value that is a
system power of 10
5. manipulatives objects used by students to illustrate and explore mathematical concepts, such
as to represent numbers in an equation
6. proportional ma- objects that are proportional to each other with respect to shape and size
nipulatives
7. number line a straight line where each number is equal distance from the next one
8. absolute value The distance a number is from zero, always a positive number
9. rounding a number is simplified to its closest multiple of 10, 100, 1,000, etc.
10. expanded form/ex- break apart each digit in the number and show the digits true value
panded notation
11. magnitude size of a number
12. place value the value of each digit in a number based on its location, or place
