Place Value
The value of 9 in the number 97
What is 90?
The term for any number that's added to another
What is an addend?
The picture below is an example of one of these.
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What is an array?
The term for any polygon with four sides
What is a quadrilateral?
These marks were among the earliest number system used
What are tally marks?
A number written in this format shows the value of each of its digits
What is expanded form?
A mathematical statement that is written with a combination of numbers and symbols
What is a number sentence?
The group of facts shown below is an example of one of these.
3 x 6 = 18
6 x 3 = 18
18 ÷ 6 = 3
18 ÷ 3 = 6
What is a fact family?
A unit of time equal to 15 minutes
What is a quarter hour?
To spell any odd number, this letter is needed
What is the letter "e?"
The correct way to read the following sentence:
457 < 547
What is "four hundred fifty-seven is less than five hundred forty-seven?"
The result you get when you subtract one number from another or the gap between two numbers
What is the difference?
the value left after dividing shown by the notation "R" or "r"
What is a remainder?
The type of measurement used for the distance between two points or objects
What is linear measurement?
The official word for dots on dice which originated around 1600 CE
What are pips?
A process that makes a number friendlier but keeps its value close to what it was
What is rounding?
A mathematical process such as adding, subtracting, multiplying, and dividing
What is an operation?
The number 8 in 32 ÷ 8 = 4
What is a divisor?
A line that divides a figure into two congruent parts that are mirror images
What is a line of symmetry?
The number 124,565,421 and the sentence, "A man, a plan, a canal, Panama" are examples of this type of sequence
What is a palindrome?
To encourage deeper conceptual understanding of numbers, the words "carrying" and "borrowing" have been replaced by this term.
What is regrouping?
The action of counting by a given whole number greater than one, sometimes used when counting like coins
What is skip counting?
Two terms that describe the result of multiplying a whole number by another whole number
What is a multiple and a product?
The name of a three-dimensional shape where all six faces are squares of the same size
What is a cube?
A unit of time that measures 1/100th of a second
What is a jiffy?