Factors, Multiples & Simplifying Calculations (Ex. 2)

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1. Question 1

   Multiple choice

   Which is the most efficient way to calculate 18 × 25?

2. Question 2

   Multiple choice

   Use known facts: if 6 × 7 = 42, what is 600 × 700?

3. Question 3

   Multiple choice

   Simplify 48 ÷ 4 using factors: 48 = 8 × 6, so 48 ÷ 4 = ?

4. Question 4

   Sequence

   Using factors of 6: 60 × 6 = 360; 600 × 6 = 3,600; 6,000 × 6 = ___.

5. Question 5

   True or false

   Multiples of 5 always end in 0 or 5.

More exercises in this module

• Written Division with Remainders (Ex. 2)

• Written Division with Remainders (Ex. 1)

• Long Multiplication: 4-5 Digit × 2-Digit (Ex. 3)

• Written Division with Remainders (Ex. 3)

• Factors, Multiples & Simplifying Calculations (Ex. 3)

• Long Multiplication: 4-5 Digit × 2-Digit (Ex. 1)