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Level 519

Place Value, Addition, Subtraction Review & Contin


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Whole Numbers
Zero and the counting numbers 1, 2, 3, 4, 5, 6, and so on. If a number has a negative sign, a decimal point, or a part that's a fraction, it is NOT a whole number.
Digits
The numbers in a given set.
place value
The way that the position of a digit in a number tells us its value
standard form
the form of number written with commas separating groups of 3 digits starting from the right;
expanded form
the number written using addition for each place value.
word form
A way of using words to write a number.
compare
To decide if one number is greater than, less than, or equal to.
equal sign
a symbol that shows two amounts have the same value
greater than
>; the number to the left of the sign is MORE than the number to the right
less than
<; the number to the left is FEWER than the number to the right
Estimate
round
Order
The number of times a regular polygon can be rotated to map onto itself in one full rotation.
Least
Smallest
Most
Majority
Highest
Very very very high
Lowest
Very very very low
Column
vertical linear array of numbers
row
a hortizontal array of numbers side by side