Group A: Choose the correct answer
(1) $33 \times 5 = 5 \times \dots$
Answer: 33 (Commutative Property)(2) The fraction that represents the colored part is:
Answer: $\dfrac{1}{8}$
Group B: Answer the following questions
(1) Amira has 3 bags. Each bag has 5 books. How many books does she have?
Answer: $3 \times 5 = 15 \text{ books}$(2) Find the product of $11 \times 3$:
Answer: 33(3) Find the perimeter of rectangle whose length is $6 \text{ cm}$ and width is $4 \text{ cm}$:
Answer: Perimeter $= (6 + 4) \times 2 = 10 \times 2 = 20 \text{ cm}$(4) Hala wanted to divide a pizza among 4 friends. Write the fraction for each:
Answer: $\dfrac{1}{4}$Mastery & Detailed Explanations
01 Properties of Multiplication
Commutative Property
This property states that changing the order of factors does not change the product. $a \times b = b \times a$.
"What is $12 \times 4$ using commutative property?"
Hint: $12 \times 4 = 4 \times 12$!
02 Geometry & Fractions
Rectangle Perimeter
Formula: $P = (L + W) \times 2$. $(6 + 4) \times 2 = 20 \text{ cm}$.
"If a square has a side of 5cm, what is its perimeter?"
Hint: $5 \times 4 = 20 \text{ cm}$!
Common mistakes in Grade 3 math exams
Many Grade 3 students confuse multiplication facts or forget the formula of perimeter. It is important to remember that the perimeter of a rectangle equals the sum of all its sides. Regular practice using exam models helps students avoid these mistakes.
Tips for solving math exams faster
Students should read the question carefully before solving. Drawing small diagrams for geometry questions and checking multiplication facts can prevent mistakes. Time management during the exam is also important.