Unit 5 Prime & Composite numbers and Numerical Patterns

Choose the answers that will make the statement true. The number 50 is __________ because it has __________ factor pair(s).

• composite, more than one

• prime, one

• neither, exactly one

Which are factor pairs of 25? Select all that apply.

• 1 and 25

• 2 and 10

• 5 and 5

• 10 and 15

• 15 and 5

Tags

CCSS.4.OA.B.4

Jessica is voting for dancers in a contest. She votes for the first contestant 5 times, the second contestant 9 times, and the third contestant 13 times. If she continues this pattern, how many times will Jessica vote for the fourth contestant?

• 15

• 16

• 17

• 18

Tags

CCSS.4.OA.C.5

Choose the pair of prime numbers that are greater than 25 and less than 35.

• 31, 33

• 27, 24

• 29, 31

• 27, 29

Samuel wrote different patterns for the rule, "add 9". Select all the patterns he could have written.

• 1, 9, 18, 27, 36

• 9, 18, 27, 36, 45

• 3, 12, 21, 30, 39

• 90, 81, 72, 63, 54

• 13, 22, 31, 40, 49

Tags

CCSS.4.OA.C.5

Choose the correct way to extend the pattern and choose the correct observation. Rule: multiply by 2 Pattern: 3, __, __, __, __ Observation: __.

• 8, 14, 26, 48; All terms in the sequence are multiples of 3.

• 6, 10, 22, 49; All terms in the sequence are smaller than 50.

• 6, 12, 24, 48; All terms in the sequence are multiples of 3.

• 6, 12, 24, 48; All terms in the sequence are odd numbers.

Tags

CCSS.4.OA.C.5

Select the composite numbers ​ ​ ​

• 59
• 19
• 25

• 84

• 81

• 100

• 108

• 144

Tags

CCSS.4.NBT.B.5

CCSS.4.OA.A.2

CCSS.4.OA.A.3

Choose the correct statement that explains whether 37 is prime or composite.

• 37 is composite because it has more than 2 factors.

• 37 is composite because it has exactly 2 factors.

• 37 is prime because it has more than 2 factors.

• 37 is prime because it has exactly 2 factors.

A pattern is shown following the rule 'multiply by 2, starting at 1'. Complete the next 2 terms of the pattern.

1, 2, 4,

• 8, 10

• 8,16

• 6,8

Tags

CCSS.4.OA.C.5