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?
A polygon with four sides
What is a quadrilateral?
These marks were among the earliest number system used.
What are tally marks?
A number written to show the value of each of its digits
What is expanded form?
This is used to express an arithmetic operation
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?
"R" or "r" is a notation used to represent the value left after dividing
What is a remainder?
The type of measurement used for the distance between two points or objects
What is linear measurement?
This word originated in around 1600 CE and is the official term for dots on dice.
What are pips?
When performing this, a whole number usually results in a number that is close to the original number and has the same number of digits, but more of the digits are zeros
What is rounding?
An action upon numbers that results in a single number
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?
This involves changing a number from one form to an equivalent form
What is to regroup?
The action of counting by a given whole number greater than one, sometimes used when counting like coins
What is skip counting?
The result you get when you multiply a number by any other number
What is a multiple?
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?