Grade 3 Β· Common Core Math Β· USA

Math is an
adventure! 🌲

In Grade 3 we learn multiplication and division, explore fractions, and calculate area and perimeter.

βœ–οΈ Click any cell to see the multiplication β€” hover to explore!
Hover over a cell to see the product!
5units
15problems
3rdgrade CC
0 / 15 solved 🌲
Unit 1

βœ–οΈ Multiplication

Multiplication is fast adding of equal groups. 6 Γ— 7 means six groups of seven, or seven groups of six β€” same answer!

Key facts to memorize: The multiplication table is your best tool. Practice by skip-counting: 7, 14, 21, 28, 35, 42, 49 (the 7s). Any number Γ— 0 = 0. Any number Γ— 1 = itself.
8 Γ— 6=48 βœ“
Q 1

7 Γ— 6 = ?

Q 2

8 Γ— 9 = ?

Skip count by 9 eight times: 9,18,27,36,45,54,63,72!
Q 3

4 Γ— 11 = ?

Unit 2

βž— Division

Division splits a total into equal groups. It's the opposite of multiplication β€” use your times tables to help!

Think multiplication: To solve 54 Γ· 6, ask: "6 Γ— ? = 54?" The answer is 9, because 6 Γ— 9 = 54.
63 Γ· 7=9 βœ“
Q 4

45 Γ· 5 = ?

Q 5

56 Γ· 8 = ?

Think: 8 Γ— ? = 56. You know 8 Γ— 7 = 56!
Q 6

72 Γ· 9 = ?

Unit 3

πŸ• Fractions

A fraction shows part of a whole. The bottom number (denominator) is how many equal parts in total. The top number (numerator) is how many parts we have.

Reading fractions: 3/8 means "3 out of 8 equal parts." The bigger the denominator, the smaller each piece β€” so 1/8 is smaller than 1/4.
A pie cut in 6 pieces β€” you eat 2β†’2/6 eaten
Q 7

A pizza is cut into 8 equal slices. You eat 3 slices. What fraction did you eat? (write as a/b)

Q 8

How many equal fourths (ΒΌ pieces) make one whole?

Think of a clock cut into fourths. How many quarter-slices fit in the whole circle?
Q 9

Which fraction is larger: 1/3 or 1/6? Type the larger one.

Imagine a pizza cut in 3 pieces vs 6 pieces. The 3-piece slices are bigger!
Unit 4

πŸ“ Area & Perimeter

Perimeter is the distance around a shape. Area is the space inside a shape, measured in square units.

Formulas for rectangles:
Perimeter = 2 Γ— (length + width)  Β·  Area = length Γ— width
Rectangle: L=6, W=4β†’Area=24 sq units, Perimeter=20 units
Q 10

A rectangle is 7 cm long and 4 cm wide. What is its area? (in sq cm)

Q 11

A square has sides of 6 cm. What is its perimeter?

A square has 4 equal sides. Perimeter = 4 Γ— 6 = 24 cm.
Q 12

A rectangle is 9 m long and 4 m wide. What is its perimeter?

Unit 5

🌟 Word Problems

Word problems describe a real situation. Read carefully, find the key numbers, decide which operation to use, then solve!

Strategy: (1) Read the problem. (2) Underline key numbers. (3) Decide: add, subtract, multiply, or divide? (4) Solve and check if the answer makes sense.
Q 13

There are 6 bags with 8 apples each. How many apples are there in total?

Q 14

32 students are split equally into 4 teams. How many students are on each team?

Q 15

A garden has 5 rows of flowers with 9 flowers in each row. How many flowers are there in the whole garden?