1. Number and place value

1.01 Multiplication and division by 10's, connecting to place value

1.02 Read and write 3 digit numbers

1.03 Read and write 4 digit numbers

1.04 Read and write larger numbers

1.05 Order and compare 3 digit numbers

1.06 Order and compare 4 digit numbers

1.07 Order and compare larger numbers

1.08 3 digit numbers in expanded form

1.09 4 digit numbers in expanded form

1.10 Larger numbers in expanded form

1.11 Round numbers

1.12 Prime and composite numbers

United States of America

Grade 4

1.12 Prime and composite numbers

Interactive practice questions

Which ONE of the following describes a prime number?

A number greater than $1$1 that has more than two factors.

A

A number that has a factor of $1$1.

B

A number that has at most two factors: itself and $1$1.

C

A number greater than $1$1 that has exactly two factors: itself and $1$1.

D

Easy

< 1min

Which ONE of the following describes a composite number?

Easy

< 1min

Is $5$5 prime or composite?

Easy

< 1min

Is $21$21 prime or composite?

Easy

< 1min

Outcomes

4.OA.B.4

Find all factor pairs for a whole number in the range 1-100. Recognize that a whole number is a multiple of each of its factors. Determine whether a given whole number in the range 1-100 is a multiple of a given one-digit number. Determine whether a given whole number in the range 1-100 is prime or composite.

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