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Retrieval: Number sequences
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These are prime numbers.
 
2, 3, 5, 11, 13
 
1, 4, 9, 25, 36
 
2, 3, 5, 9, 15
 
4, 8, 12, 16
A …………………………….. number has more than two factors . These numbers can also be divided by numbers other than one and itself.
 
composite
 
prime
 
square
 
rectangular
A …………………………number is a number that has only two factors. Itself, and the number ………………………….. .
 
prime
 
composite
 
odd
 
even
True or false: 9² means 9 x 2?
 
False! The product is 81.
 
True! The product is 18.
Duy Khiem says, “Here are two different ways to write square numbers”. Can you write the fifth terms of each his sequences?1², 2², 3², 4², ……….
 
24
 
5²
 
6²
The pattern starts 1, 3, 6, …. What do you call this number sequence?
 
Triangular numbers
 
Square numbers
 
Scalene numbers
 
An Equilateral family
Read the statements and write the sequence: Milan is thinking of a sequence: The first term of the sequence is ninety-two. The last term of the sequence is 64. There are 5 terms in the sequence. The term-to-term rule is subtr
 
92, 85, 78, 71, 64
 
92, 85, 79, 72, 64
 
92, 84, 77, 72, 64
What is the 12th term of this sequence? 4, 13, 22, 31
12 x 9 - 5 = 103
What is the term to term rule? 4, 13, 22, 31, ............ ,.............. ,............ ,
+9
Igor counts up in steps of 3 starting at −40.Write the fifth number in his sequence in the box Observe the sequence below:
-25
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