Heads up: opening this section reveals every question, every option, and the correct answer for this round. If you came here to play, scroll up and hit Play first.
Question 1: In the number 853, how many hundreds are there?
- 8
- 85
- 3
- 5
Answer: A. 8
Explanation: In a three-digit number, the first digit on the left represents the hundreds place. For 853, the 8 is in the hundreds place, meaning there are 8 hundreds total.
Question 2: What is the largest digit that can fit in any single place value?
- 10
- 1
- 9
- 100
Answer: C. 9
Explanation: Each place value in our base-ten system can only hold one digit at a time. The largest single digit available to use in any place is the number 9.
Question 3: How many tens make up 100?
- 5
- 100
- 20
- 10
Answer: D. 10
Explanation: Our base-ten system is built on groups of ten. It takes exactly ten groups of 10 to equal 100, which is why we move to the hundreds place.
Question 4: When you have 10 in the ones place, what happens?
- It stays there
- It becomes 100
- It becomes 1 ten
- It disappears
Answer: C. It becomes 1 ten
Explanation: In place value, you cannot have 10 in the ones place. When you reach 10 ones, they are regrouped into 1 ten, leaving 0 in the ones place instead.
Question 5: Which of these is the expanded form of 829?
- 80 + 20 + 9
- 800 + 200 + 9
- 8 + 2 + 9
- 800 + 20 + 9
Answer: D. 800 + 20 + 9
Explanation: Expanded form breaks a number down by its value. 829 is made of 8 hundreds (800), 2 tens (20), and 9 ones (9), written as 800 + 20 + 9.
Question 6: To compare 452 and 481, which place do you look at first?
- Any place
- Hundreds
- Ones
- Tens
Answer: B. Hundreds
Explanation: When comparing two three-digit numbers, you always start by looking at the hundreds digit first. If they are the same, you then move to the tens, then the ones.
Question 7: What is the value of the 5 in the number 853?
- 50
- 500
- 5
- 5000
Answer: A. 50
Explanation: In the number 853, the 5 is in the tens place. Since it is in the tens place, its value is 5 tens, which is equal to the number 50.
Question 8: Which tool is commonly used to represent place value?
- A thermometer
- A ruler
- Base-ten blocks
- A scale
Answer: C. Base-ten blocks
Explanation: Base-ten blocks are a standard classroom tool used to help students visualize how ones, tens, and hundreds are grouped together to form larger multi-digit numbers up to 1000.
Question 9: How many ones make up 10?
- 100
- 10
- 1
- 5
Answer: B. 10
Explanation: The base-ten system is structured so that ten ones are equivalent to one ten. This is the fundamental building block for counting and understanding larger numbers in Grade 2.
Question 10: Which number is written in standard form?
- Eight five three
- 853
- 800 + 50 + 3
- 8 hundreds 5 tens 3
Answer: B. 853
Explanation: Standard form is the way we normally write numbers using digits, such as 853. The other options show expanded form, word form, or a description of the place values.