← All Standards

Grade 3

• Geometry

  • 3.G.A.1
  • 3.G.A.2

• Measurement & Data

  • 3.MD.A.1.a
  • 3.MD.A.1.b
  • 3.MD.A.2
  • 3.MD.B.3
  • 3.MD.B.4
  • 3.MD.C.5
  • 3.MD.C.5.a
  • 3.MD.C.5.b
  • 3.MD.C.6
  • 3.MD.C.7
  • 3.MD.C.7.a
  • 3.MD.C.7.b
  • 3.MD.C.7.c
  • 3.MD.C.7.d
  • 3.MD.C.8

• Number & Operations: Base Ten

  • 3.NBT.A.1
  • 3.NBT.A.2
  • 3.NBT.A.3

• Number & Operations: Fractions

  • 3.NF.A.1
  • 3.NF.A.2
  • 3.NF.A.2.a
  • 3.NF.A.2.b
  • 3.NF.A.2.c
  • 3.NF.A.3
  • 3.NF.A.3.a
  • 3.NF.A.3.b
  • 3.NF.A.3.c
  • 3.NF.A.3.d

• Operations & Algebraic Thinking

  • 3.OA.A.1
  • 3.OA.A.2
  • 3.OA.A.3
  • 3.OA.A.4
  • 3.OA.B.5
  • 3.OA.B.6
  • 3.OA.C.7
  • 3.OA.D.8
  • 3.OA.D.9
  • 3.OA.D.10

Arizona Math Standard: 3.OA.A.4

Determine the unknown whole number in a multiplication or division equation relating three whole numbers For example, determine the unknown number that makes the equation true in each of the equations 8 × ? = 48, 5 = ? ÷ 3, 6 × 6 = ?.

Back to School Math Worksheets

In these math problems, the solution is already given. But another number is missing!

Gr 1-6

Spring Math Worksheets: Multiplication and Division

Sets of multiplication and division practice problems. But the unknown isn’t where you expect it to be!

Gr 1, 3, 4

Factors and Codes: First Names (Episode 2)

Scrambled up somewhere in 161,000 is a first name. Can you find it!?

Gr 3, 4, 6, 7

Factors and Codes (Episode 1)

Let’s use factors to encode and decode words.

Gr 3, 4, 6

How Many Will There Be? Chip Off The Block

Give kids a taste of a sequence, let them build an understanding, and then see how far their predictions can take them.

Gr 1-5

How Many Will There Be? Earthworm

Give kids a taste of a sequence, let them build an understanding, and then see how far their predictions can take them.

Gr 3-5

How Many Will There Be? Courtyard

Give kids a taste of a sequence, let them build an understanding, and then see how far their predictions can take them.

Gr 2-6

How Many Will There Be? Checkerboard

Give kids a taste of a sequence, let them build an understanding, and then see how far their predictions can take them.

Gr 3-5

How Many Will There Be? Crosses

Give kids a taste of a sequence, let them build an understanding, and then see how far their predictions can take them.

Gr 1-5

How Many Will There Be? Squares in Squares

Give kids a taste of a sequence, let them build an understanding, and then see how far their predictions can take them.

Gr 2-5

Fizz Buzz: A Counting and Divisibility Game

Ready for a tricky counting and divisibility game?

Gr 1-4

How Many Ways: Divide Fractions Equal 1/4

How many different ways can you make this fraction division math statement true using only the digits one through nine?

Gr 3, 5, 6, 7

How Many Ways: Multiply Fractions Equal 1/4

One equation. Digits one through nine. How many ways can you make it work?

Gr 3, 4, 5, 7

How Many Will There Be? Pyramids

Give kids a taste of a sequence, let them build an understanding, and then see how far their predictions can take them.

Gr 2-4

How Many Will There Be? Sliced Circles

Give kids a taste of a sequence, let them build an understanding, and then see how far their predictions can take them.

Gr 1-5

How Many Will There Be? Triangles Within Triangles

A triangle splits and splits and splits again. How many will there be in step 20?

Gr 1-4

Math Curiosity: Goldbach’s Conjecture

Can any even number be written as the sum of two primes? Goldbach thought so, but we haven’t proven it… yet!

Gr 1-5

Disneyland Parking Structure Math Project

Your students will use estimation strategies to figure out how many parking spots are there in the parking structure at Disneyland? And you bet I reveal the real answer!

Gr 2, 3, 4, 5, 7, 8

How Many Ways: Times Equals Minus

How many different ways can you make this math statement true using only the digits one through nine?

Gr 1, 2, 3, 4, 6, 7

How Many Ways: Times Equals Times

How many different ways can you make this math statement true using only the digits one through nine?

Gr 3, 4, 6

How Many Ways: 2 Digit ÷ 1 Digit = 1 Digit

How many different ways can you make this math statement true using only the digits one through nine?

Gr 2-6

Undoing Multiplication With Division

Multiplication and division, natural foes, are constantly seeking to undo each other. Students will attempt to reverse the effects of multiplication by dividing once, twice, or even thrice!

Gr 3-7

Math Curiosity: Four Squares

Every positive integer can be written as the sum of (at most) four perfect squares!

Gr 1, 2, 3, 4, 8

Math Curiosity: Magic Squares

Imagine a 3×3 square in which every row, column, and diagonal have the same sum. That’s a magic square!

Gr 1, 2, 3, 4, 7

Why Is Our Calendar So Weird!?

Why are there 12 months? Why don’t weeks fit into months evenly? Why don’t weeks fit into the year evenly? What’s going on with the calendar!

Gr 3-6

Math Curiosity: Odds & Squares

Why does the sum of the first 5 odds also equal 5 squared?

Gr 1, 2, 3, 4, 6

A Donut Investigation

In this cross-curricular investigation, students will look into an intriguing question: do donuts or salads have more sugar? They’ll grapple with misleading information, bias, and use their math skills to create a visual representation of sugar in popular foods.

Gr 1, 2, 3, 4, 6, 7

Math Curiosity: Waring’s Conjecture

So, can you write every odd (greater than 3) as the sum of three primes?

Gr 1-5

Math Curiosity: Finding Primes

Prime numbers are unpredictable! How can we possibly find them all? An Ancient Greek mathematician found one way!

Gr 1, 2, 3, 4, 6

A Nutrition-Based Math Project

Let’s create a parody ad attacking a surprisingly calorie-rich meal.

Gr 3, 4, 6, 7, 8

Math Curiosity: Collatz Conjecture

The Collatz Conjecture: start with any number and get to 1 using just two rules. It seems to always work…

Gr 1-6