Solve the Multiplication Problem: 33×16

Two-Digit Multiplication with Distributive Property

33×16= 33\times16=

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Step-by-step video solution

Watch the teacher solve the problem with clear explanations
00:00 Solve
00:03 Let's use the distributive law
00:06 Break down 33 into 30 plus 3
00:10 Break down 16 into 10 plus 6
00:17 Open parentheses properly
00:20 Multiply each term in parentheses by each term in the second parentheses
00:44 Solve each multiplication separately and then sum
01:10 Solve one addition operation at a time
01:29 And this is the solution to the question

Step-by-step written solution

Follow each step carefully to understand the complete solution
1

Understand the problem

33×16= 33\times16=

2

Step-by-step solution

To make it easier for us to solve, let's break down 33 and 16 into more convenient numbers, preferably round ones.

We get:

(30+3)×(10+6)= (30+3)\times(10+6)=

We'll use the distributive property to solve.

First, we'll multiply the first term in the left parentheses by the first term in the right parentheses.

We'll multiply the first term in the left parentheses by the second term in the right parentheses.

We'll multiply the second term in the left parentheses by the first term in the right parentheses.

We'll multiply the second term in the left parentheses by the second term in the right parentheses.

We get:

(30×10)+(30×6)+(3×10)+(3×6)= (30\times10)+(30\times6)+(3\times10)+(3\times6)=

Let's solve what's in the parentheses and we get:

300+180+30+18 300+180+30+18

Let's solve from left to right:

300+180=480 300+180=480

480+30=510 480+30=510

510+18=528 510+18=528

3

Final Answer

528

Key Points to Remember

Essential concepts to master this topic
  • Strategy: Break numbers into tens and ones for easier calculation
  • Technique: Use distributive property: (30+3)×(10+6) (30+3)\times(10+6) gives four products
  • Check: Add all four products: 300+180+30+18 = 528 ✓

Common Mistakes

Avoid these frequent errors
  • Forgetting to add all four partial products
    Don't skip any of the four multiplications when using (a+b)(c+d) = ac + ad + bc + bd! Missing even one product gives a wrong answer. Always ensure you have exactly four products: first×first, first×second, second×first, second×second.

Practice Quiz

Test your knowledge with interactive questions

\( 140-70= \)

FAQ

Everything you need to know about this question

Why break 33 and 16 into smaller numbers?

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Breaking numbers like 33 into 30+3 makes multiplication much easier! It's simpler to multiply by 30 than by 33 because round numbers like 30 are easier to work with mentally.

What is the distributive property exactly?

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The distributive property says (a+b)×(c+d)=ac+ad+bc+bd (a+b) \times (c+d) = ac + ad + bc + bd . You multiply each term in the first group by each term in the second group, then add all results together.

Do I have to use this method for all multiplication?

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No! This method is especially helpful for two-digit numbers. For simple problems like 5×7, you can multiply directly. Use this when standard multiplication feels challenging.

What if I get the four products wrong?

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Double-check each multiplication: 30×10=300 30\times10=300 , 30×6=180 30\times6=180 , 3×10=30 3\times10=30 , 3×6=18 3\times6=18 . Take your time with each step!

How can I verify my final answer is correct?

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You can check by using a different method like standard multiplication or by estimating: 33×16 should be close to 30×20 = 600, so 528 makes sense!

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