Place Value Decomposition: Breaking Down 93 into Tens and Units

Q: How do I remember which digit represents tens and which represents ones?

Think of reading from left to right! In any two-digit number, the left digit is always the tens place and the right digit is always the ones place. For 93: 9 (left) = tens, 3 (right) = ones.

Q: What does 'nine tens' actually mean in real value?

Nine tens means 9 groups of 10, which equals $ 9 \times 10 = 90 $. Think of it as having 9 bundles of 10 sticks each!

Q: Why can't it be 'three tens and nine ones'?

Because that would equal $ 3 \times 10 + 9 \times 1 = 30 + 9 = 39 $, not 93! The position of each digit matters, not just what digits you see.

Q: Is there a quick way to check my answer?

Yes! Multiply your tens by 10 and add your ones: $ 9 \times 10 + 3 = 90 + 3 = 93 $. If you get the original number back, you're correct!

Q: What if I see a number like 50? How many ones are there?

Great question! 50 has zero ones because the ones place digit is 0. It's just 5 tens and 0 ones: $ 5 \times 10 + 0 \times 1 = 50 $.

Place Value Understanding with Two-Digit Numbers

How many units and tens do you need to make the number 93?

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Step-by-step written solution

Follow each step carefully to understand the complete solution

Understand the problem

How many units and tens do you need to make the number 93?

Step-by-step solution

To solve this problem, we need to express the number 93 in terms of tens and units.

Step 1: Identify the digit in the tens place of the number 93.
In the number 93, the tens digit is 9.
Step 2: Identify the digit in the units (ones) place of the number 93.
In the number 93, the units digit is 3.
Step 3: Translate the digits into their values in terms of tens and units.
- The digit '9' in the tens place represents nine tens, which is 90.
- The digit '3' in the units place represents three units, which is 3.

Therefore, the number 93 is composed of nine tens and three units.

Finally, the correct choice for this problem is: Nine tens and three ones.

Final Answer

Nine tens and three ones

Key Points to Remember

Essential concepts to master this topic

Place Value Rule: Each position represents a different power of ten
Decomposition Method: Split 93 into 90 (nine tens) + 3 (three ones)
Verification: Count the actual value: 9 × 10 + 3 × 1 = 93 ✓

Common Mistakes

Avoid these frequent errors

Confusing digit position with digit value
Don't say 'three tens and nine ones' just because you see digits 9 and 3 = completely backwards answer! The position of each digit determines its value, not just the digit itself. Always identify which digit is in the tens place (left) and which is in the ones place (right) first.

Practice Quiz

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FAQ

Everything you need to know about this question

How do I remember which digit represents tens and which represents ones?

Think of reading from left to right! In any two-digit number, the left digit is always the tens place and the right digit is always the ones place. For 93: 9 (left) = tens, 3 (right) = ones.

What does 'nine tens' actually mean in real value?

Nine tens means 9 groups of 10, which equals $9 \times 10 = 90$ . Think of it as having 9 bundles of 10 sticks each!

Why can't it be 'three tens and nine ones'?

Because that would equal $3 \times 10 + 9 \times 1 = 30 + 9 = 39$ , not 93! The position of each digit matters, not just what digits you see.

Is there a quick way to check my answer?

Yes! Multiply your tens by 10 and add your ones: $9 \times 10 + 3 = 90 + 3 = 93$ . If you get the original number back, you're correct!

What if I see a number like 50? How many ones are there?

Great question! 50 has zero ones because the ones place digit is 0. It's just 5 tens and 0 ones: $5 \times 10 + 0 \times 1 = 50$ .

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