Properties of Multiplication — Answer Key
Part A: Multiple Choice
Circle the best answer for each question.
1. In Grade 3, which product shows the identity property of multiplication?
A) 7 x 1 = 7
B) 7 x 0 = 0
C) 7 x 2 = 14
D) 7 + 1 = 8
Multiplying any Grade 3 number by 1 gives that same number, which is the identity property.
2. A Grade 3 student multiplies 485 x 0. What is the product?
A) 485
B) 0
C) 1
D) 4850
The zero property of multiplication makes 485 x 0 equal 0 in Grade 3.
3. In Grade 3, which expression equals 9 by the identity property?
A) 9 x 0
B) 9 + 0
C) 9 x 1
D) 9 - 1
9 x 1 = 9 shows the identity property of multiplication in Grade 3.
4. In Grade 3, 6 x (3 x 0) equals what number?
A) 18
B) 9
C) 6
D) 0
3 x 0 = 0, so 6 x 0 = 0 by the zero property in Grade 3.
Part B: Fill in the Blank
Write the correct answer on each line.
1. In Grade 3, 847 x 1 = 847 by the identity property.
The identity property of multiplication keeps the factor the same in Grade 3.
2. A Grade 3 student finds 9 x 0 = 0 by the zero property.
The zero property states that any factor multiplied by 0 gives 0 in Grade 3.
3. In Grade 3, (5 x 0) x 12 = 0 because one factor is zero.
5 x 0 = 0, and 0 x 12 = 0, which is the zero property in Grade 3.
4. A Grade 3 learner uses 7 x 8 = 7 x 5 + 7 x 3 to distribute.
7 x 8 = 7 x 5 + 7 x 3 = 35 + 21 = 56 by the distributive property.
5. In Grade 3, 1 x 256 = 256 by the identity property.
Identity property in Grade 3 means 1 times any number equals that number.