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4th Grade Number Activities
This page provides examples of 4th Grade Number Activities aligned with the Common Core State Standards. All activities are suitable for use in Math Centers, small group or whole class settings and are designed to elicit a range of responses and provide opportunities for students to communicate their reasoning and mathematical thinking. All files for the 4th Grade Number Activities listed are in PDF format and can be accessed using Adobe Reader. 
4th GRADE NUMBER ACTIVITIES: OPERATIONS AND ALGEBRAIC THINKING
Numbers of the Week Use as morning work or for homework!
4.OA.1 Interpret a multiplication equation as a comparison, e.g., interpret 35
= 5 x 7 as a statement that 35 is 5 times as many as 7 and 7 times as
many as 5. Represent verbal statements of multiplicative comparisons as
multiplication equations.
Possible Activities:

4.OA3 Solve multistep word problems posed with whole numbers and
having wholenumber answers using the four operations, including
problems in which remainders must be interpreted. Represent these
problems using equations with a letter standing for the unknown
quantity. Assess the reasonableness of answers using mental computation
and estimation strategies including rounding.
Possible Activities: Math Read Aloud Task Card: 
Gain familiarity with factors and multiples
4.OA4
Find
all factor pairs for a whole number in the range 1100. Recognize that a
whole number is a multiple of each of its factors. Determine whether a
given whole number in the range 1100 is a multiple of a given onedigit
number. Determine whether a given whole number in the range 1100 is
prime or composite.
Possible Activities: 
Generate and analyze patterns
4.OA5
Generate
a number or shape pattern that follows a given rule. Identify apparent
features of the pattern that were not explicit in the rule itself. For
example, given the rule “Add 3” and the starting number 1, generate
terms in the resulting sequence and observe that the terms appear to
alternate between odd and even numbers. Explain informally why the
numbers will continue to alternate in this way.
Possible Activities:
Square Numbers
Triangular Numbers
4th GRADE NUMBER ACTIVITIES: NUMBER AND OPERATIONS IN BASE TEN
Generalize place value understanding for multidigit whole numbers
4.NBT1 Recognize
that in a multidigit whole number, a digit in one place represents ten
times what it represents in the place to its right. For example,
recognize that 700÷70=10 by applying concepts of place value and
division.
Place Value Problems
Place Value Chart
4.NBT2 Read and write multidigit whole numbers
using baseten numerals, number names, and expanded form. Compare two
multidigit numbers based on meanings of the digits in each place, using
>, =, and < symbols to record the results of comparisons.
Possible Activities: 
4.NBT3 Use place value understanding to round multidigit whole numbers to any place.
Possible Activities:
Round to the Nearest Ten
Round to the Nearest Hundred
Use place value understanding and properties of operations to perform multidigit arithmetic
4.NBT4 Fluently add and subtract multidigit whole numbers using the standard algorithm.
Possible Activities:
Adding and Subtracting MultiDigit Numbers
Addition and Subtraction Number Stories
4.NBT5 Multiply a whole number of up to four digits by a onedigit whole number, and multiply two twodigit numbers, using strategies based on place value and the properties of operations. Illustrate and explain the calculation by using equations, rectangular arrays, and/or area models
4.NBT6 Find wholenumber quotients and remainders with up to fourdigit dividends and onedigit divisors, using strategies based on place value, the properties of operations, and/or the relationship between multiplication and division
4th GRADE NUMBER ACTIVITIES: NUMBER AND OPERATIONS  FRACTIONS
Extend understanding of fraction equivalence and ordering
4.NF1 Explain
why a fraction a/b is equivalent to a fraction (nxa)/(nxb) by using
visual fraction models, with attention to how the number and size of the
parts differ even though the two fractions themselves are the same
size. Use this principle to recognize and generate equivalent fractions.
Possible Activities: 
4.NF2 Compare
two fractions with different numerators and different denominators,
e.g. by creating common denominators or numerators, or by comparing to a
benchmark fraction such as ½. Recognize that comparisons are valid only
when the two fractions refer to the same whole. Record the results of
comparisons with comparisons with symbols >, =, or <. and justify
the conclusions, e.g., by using a visual fraction model.
Possible Activities: 
If you can't explain it simply, you don't understand it well enough. ~ Albert Einstein 
Build fractions from unit fractions by applying and extending previous understandings of operations on whole numbers
4.NF3 Understand a fraction a/b with a>1 as a sum of fractions 1/b.
a. Understand addition and subtraction of fractions as joining and separating parts referring to the same whole.
Possible Activities: 
Math Read Aloud Task Card: 
b.
Decompose a fraction into a sum of fraction with the same denominator
in more than one way, recording each decomposition by an equation.
Justify decompositions, e.g., by using a visual fraction model.
Examples: 3/8 = 1/8 + 1/8 + 1/8; 3/8 = 1/8 + 2/8; 2 1/8 = 1 + 1 + 1/8 =
8/8 + 8/8 + 1/8
Possible Activities:
Decomposing Fractions
Pizza Share
c. Add and subtract mixed numbers with like denominators, e.g., by
replacing each mixed number with an equivalent fraction, and/or by using
properties of operations and the relationship between addition and
subtraction.
Possible Activities:
Mixed Number Word Problems (like denominators)
Adding Mixed Numbers
Subtracting Mixed Numbers
d.
Solve word problems involving addition and subtraction of fractions
referring to the same whole and having like denominators, e.g., by using
visual fraction models and equations to represent the problem.
Possible Activities:
Fraction Word Problems (like denominator)
Addition Word Problems with Fractions
Subtraction Word Problems with Fractions
4.NF4 Apply and extend previous understandings of multiplication to multiply a fraction by a whole number:
a.
Understand a fraction a/b as a multiple of 1/b. For example, use a
visual fraction model to represent 5/4 as the product of 5 x (1/4),
recording the conclusion by the equation 5/4 = 5 x (1/4).
Possible Activities:
Models for Fraction Multiplication
b.
Understand a multiple of a/b as a multiple of 1/b, and use this
understanding to multiply a fraction by a whole number. For example, use
a visual fraction model to express 3 x (2/5) as 6 x (1/5), recognizing
this product as 6/5. (In general, n x (a/b) = (nxa)/b).
Possible Activities:
Multiply a Whole Number by a Fraction
c. Solve
word problems involving multiplication of a fraction by a whole number,
e.g. by using visual fraction models and equations to represent the
problem. For example, if each person at a party will eat 3/8 of a pound
of roast beef, and there will be 5 people at the party, how many pounds
of roast beef will be needed? Between what two whole numbers does your
answer lie?
Possible Activities: 
Understand decimal notation for fractions, and compare decimal fractions
4.NF5 Express
a fraction with denominator 10 as an equivalent fraction with
denominator 100, and use this technique to add two fractions with
respective denominators 10 and 100. For example, express 3/10 as 30/100,
and add 3/10 + 4/100 = 34/100.
Possible Activities:
Sums of 1
Equivalent Fractions with a Denominator of 100 Problems
4.NF6 Use
decimal notation for fractions with denominators 10 or 100. For
example, rewrite 0.62 as 62/100; describe a length as 0.62 meters;
locate 0.62 on a number line diagram.
Possible Activities:
Representing Decimals
4.NF7 Compare
two decimals to hundredths by reasoning about their size. Recognize
that comparisons are valid only when the two decimals refer to the same
whole. Record the results of comparisons with the symbols >, =, or
<, and justify the conclusions, e.g., by using a visual model.
Possible Activities:
Comparing Decimals
Decimal Sort